Bump actions/checkout from 4.2.2 to 6.0.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.2.2 to 6.0.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4.2.2...v6.0.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -48,7 +48,7 @@ jobs:
           dotnet-version: "6.0.100"
       - name: Run dotnet --info
         run: dotnet --info
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v6.0.0
         with:
           fetch-depth: 0
       - name: Build

.github/workflows/codeql-analysis.yml

@@ -16,7 +16,7 @@ jobs:
   analyse:
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v6.0.0
         with:
           fetch-depth: 2
       - uses: github/codeql-action/init@v3