Bump actions/checkout from 4 to 5

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 5.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/build.yml

@@ -42,7 +42,7 @@ jobs:
     runs-on: ubuntu-latest
     container: kambi/castle-engine-cloud-builds-tools:cge-none
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       # Set env CASTLE_ENGINE_PATH following
       # https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#environment-files
       # https://brandur.org/fragments/github-actions-env-vars-in-env-vars
@@ -100,7 +100,7 @@ jobs:
     name: Build Using macOS
     runs-on: macos-13
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Install FPC+Lazarus
         uses: gcarreno/setup-lazarus@v3.3.1
         with:
@@ -163,7 +163,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [release]
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Update Release Tag
       if: ${{ github.ref == 'refs/heads/master' }}
       run: |