ci(deps): 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/package-build.yml

@@ -15,7 +15,7 @@ jobs:
   build-debian:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: "Update changelog"
         run: |
           set -ex

.github/workflows/pr-review.yml

@@ -11,7 +11,7 @@ jobs:
     name: shellcheck grml-debootstrap
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: shellcheck
         uses: reviewdog/action-shellcheck@v1
         with:
@@ -29,7 +29,7 @@ jobs:
     name: shellcheck test scripts
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: shellcheck
         uses: reviewdog/action-shellcheck@v1
         with:

.github/workflows/release.yml

@@ -11,7 +11,7 @@ jobs:
       actions: read
       contents: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Extract version from tag
         id: version

.github/workflows/test-build.yml

@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - run: ./tests/gha-build-deb.sh
       name: "Build .deb for ${{matrix.host_release}}"
@@ -72,7 +72,7 @@ jobs:
     runs-on: ${{ matrix.runner }}
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Download built deb
       uses: actions/download-artifact@v4