Bump the actions group with 3 updates

Bumps the actions group with 3 updates: [actions/checkout](https://github.com/actions/checkout), [OpenTTD/actions](https://github.com/openttd/actions) and [actions/cache](https://github.com/actions/cache).


Updates `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](actions/checkout@v3...v4)

Updates `OpenTTD/actions` from 2 to 5
- [Release notes](https://github.com/openttd/actions/releases)
- [Commits](OpenTTD/actions@v2...v5)

Updates `actions/cache` from 3 to 4
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v3...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/commit-checker.yml

@@ -10,12 +10,12 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         fetch-depth: 4
 
     - name: Get pull-request commits
-      uses: OpenTTD/actions/checkout-pull-request@v2
+      uses: OpenTTD/actions/checkout-pull-request@v5
 
     - name: Check commits
       uses: OpenTTD/OpenTTD-git-hooks@main

.github/workflows/release.yml

@@ -13,7 +13,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Generate .version
       run: |
@@ -86,7 +86,7 @@ jobs:
         Write-Output "image=$env:ImageOS-$env:ImageVersion" >> $env:GITHUB_OUTPUT
 
     - name: Enable vcpkg cache
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: vcpkg/installed
         key: ${{ steps.key.outputs.image }}-vcpkg-${{ matrix.arch }}-1 # Increase the number whenever dependencies are modified