Misc: Update copyright headers

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,94 +0,0 @@
-name: Bug report
-description: Report a bug in DuckStation
-body:
-
-- type: markdown
-  attributes:
-    value: |
-      **Please read before creating a new bug report:**
-      1. Make sure there is not already an issue for this bug by [searching in **both** open and closed issues](https://github.com/stenzek/duckstation/issues?q=is%3Aissue+sort%3Aupdated-desc+).
-      2. All enhancements **must** be off. To quickly disable all enhancements with affecting your normal configuration, you can check **Disable All Enhancements** in Advanced Options.
-      3. All advanced options **must** be at their default values.
-      4. No cheats may be active. If you were using cheats, they should be disabled, and the game must be rebooted before reporting the bug.
-      5. Do not share save state files. (Sharing memory card files is OK.)
-      6. Verify your BIOS and game dumps, as we can not assist with issues resulting from bad dumps.
-      7. If playing PAL region software, please check whether or not the game has LibCrypt protection. If it does, make sure you have a [correct SBI file](https://github.com/stenzek/duckstation#libcrypt-protection-and-sbi-files).
-      8. Please post your bug report in English, as this is the only language spoken by the developers. The [Discord server](https://discord.gg/Buktv3t) has many helpful people if you need help translating.
-      9. Issues about the libretro core will be deleted (you will be blocked from the repository if you create such an issue). That core is not DuckStation, it is a broken fork, and has nothing to do with us.
-
-- type: input
-  attributes:
-    label: Game details
-    description: |
-      Specify the game's serial code, full name and region (USA, Europe, Japan).
-    placeholder: SLUS-00404 Ace Combat 2 (USA)
-  validations:
-    required: true
-
-- type: textarea
-  attributes:
-    label: Description of the issue/bug
-    description: |
-      Describe what you are seeing and/or hearing during gameplay. What doesn't work, and how do you expect it to work instead?
-      You can include images or videos with drag and drop, and format code blocks or logs with <code>```</code> tags.
-  validations:
-    required: true
-
-- type: textarea
-  attributes:
-    label: Steps to reproduce
-    description: |
-      Try to provide as much detail as possible to reproduce the issue.
-      Having reproducible issues is a *prerequisite* for contributors to be able to solve them.
-  validations:
-    required: true
-
-- type: input
-  attributes:
-    label: Software and hardware information
-    description: |
-      For desktops and laptops, specify your OS version, CPU and graphics card information (model and driver version).
-      For mobile devices, specify your OS version and device model name.
-    placeholder: Windows 10, Intel Core i7-7500U, Intel HD Graphics 620 (27.20.100.9616)
-  validations:
-    required: true
-
-- type: input
-  attributes:
-    label: DuckStation version
-    description: |
-      Specify your DuckStation version and how you installed it (GitHub Releases, GitHub Actions, compiled from source, …).
-  validations:
-    required: true
-
-- type: dropdown
-  attributes:
-    label: DuckStation rendering backend
-    description: |
-      Specify the DuckStation rendering backend you were using when reporting this issue.
-      If you can reproduce this issue using more than one rendering backend, mention it in the **Description of the issue/bug** section above.
-      When reporting a graphics-related issue, please test all the rendering backends you can before submitting the issue.
-    options:
-      - Software
-      - Direct3D 11
-      - Direct3D 12
-      - OpenGL
-      - Vulkan
-  validations:
-    required: true
-
-- type: input
-  attributes:
-    label: DuckStation controller backend, drivers and wrappers
-    description: |
-      Which controller backend are you using in DuckStation's General Settings?
-      Have you installed any drivers or wrappers on your system, or do you have any programs like Steam open?
-      If so, specify which drivers/wrappers you are using.
-  validations:
-    required: true
-
-- type: textarea
-  attributes:
-    label: Additional context
-    description: |
-      Add any other context about the problem here.

.github/ISSUE_TEMPLATE/config.yml

@@ -1,10 +0,0 @@
-blank_issues_enabled: false
-
-contact_links:
-  - name: Game compatibility list
-    url: https://docs.google.com/spreadsheets/d/1H66MxViRjjE5f8hOl5RQmF5woS1murio2dsLn14kEqo/edit
-    about: Please refer to the game compatibility list before opening an issue.
-
-  - name: Discord server
-  - url: https://discord.gg/Buktv3t
-  - about: Please ask support questions on the Discord server, not here.

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -1,43 +0,0 @@
-name: Feature request
-description: Request a feature to be added or improved in DuckStation
-body:
-
-- type: markdown
-  attributes:
-    value: |
-      **Please read before creating a new feature request:**
-      1. Make sure there is not already an issue for this feature request by [searching in **both** open and closed issues](https://github.com/stenzek/duckstation/issues?q=is%3Aissue+sort%3Aupdated-desc+).
-      2. Please open **one issue per requested feature**. Do not cram several unrelated feature requests in a single issue, as this makes it harder for contributors to track what's being worked on.
-      3. Please post your feature request in English, as this is the only language spoken by the developers. The [Discord server](https://discord.gg/Buktv3t) has many helpful people if you need help translating.
-      4. Issues about the libretro core will be deleted (you will be blocked from the repository if you create such an issue). That core is not DuckStation, it is a broken fork, and has nothing to do with us.
-
-- type: textarea
-  attributes:
-    label: Problem statement
-    description: |
-      Is your feature request related to a problem? Please describe.
-    placeholder: Example - "I'm always frustrated when […]"
-  validations:
-    required: true
-
-- type: textarea
-  attributes:
-    label: Proposed solution
-    description: |
-      A clear and concise description of what you want to happen.
-  validations:
-    required: true
-
-- type: textarea
-  attributes:
-    label: Alternatives considered
-    description: |
-      Describe alternatives you've considered.
-  validations:
-    required: true
-
-- type: textarea
-  attributes:
-    label: Additional context
-    description: |
-      Add any other context about the problem or proposed feature here.

.github/workflows/rolling-release.yml

@@ -346,7 +346,7 @@ jobs:
     - name: Install packages
       shell: bash
       run: |
-        brew install curl ninja
+        brew install ninja
 
     - name: Cache Dependencies
       id: cache-deps-mac