Bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v3...v4)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/build-linux.yml

@@ -41,7 +41,7 @@ jobs:
     name: '${{ inputs.OS }}-${{ inputs.architecture }}'
     runs-on: ${{ inputs.runs_on }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Setup .NET
         uses: actions/setup-dotnet@v3
         with:

.github/workflows/build-windows.yml

@@ -35,7 +35,7 @@ jobs:
             release_name: classic
             prefix: Classic-
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Setup .NET
         uses: actions/setup-dotnet@v3
         with:

.github/workflows/docker.yml

@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3