Bump actions/checkout from 4.2.0 to 4.2.1

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.2.0 to 4.2.1.
- [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/v4.2.0...v4.2.1)

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

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

.github/workflows/build-deb-pr.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4.2.0
+        uses: actions/checkout@v4.2.1
       - name: Build Debian Package in Docker
         run: |
           docker run --rm -v $(pwd):/tmp debian:bookworm-slim bash -c \

.github/workflows/build-deb.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4.2.0
+        uses: actions/checkout@v4.2.1
       - name: Build Debian Package in Docker
         run: |
           docker run --rm -v $(pwd):/tmp debian:bookworm-slim bash -c \