Bump actions/checkout from 5 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/auto_snapshot_update.yml

@@ -34,7 +34,7 @@ jobs:
       run: echo ${{ inputs.distinct_id }}
 
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Set up Python 3.12
       uses: actions/setup-python@v6

.github/workflows/check_translations.yml

@@ -21,7 +21,7 @@ jobs:
     steps:
 
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Check translations
       uses: Wurst-Imperium/check-translations@v1

.github/workflows/dependency_graph.yml

@@ -22,7 +22,7 @@ jobs:
     steps:
 
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Set up Java 21
       uses: actions/setup-java@v5

.github/workflows/gradle.yml

@@ -35,7 +35,7 @@ jobs:
       run: echo ${{ inputs.distinct_id }}
 
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Set up Java 21
       uses: actions/setup-java@v5

.github/workflows/publish.yml

@@ -42,7 +42,7 @@ jobs:
       run: echo ${{ inputs.distinct_id }}
 
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         # Include all tags in case the new tag already exists.
         fetch-tags: true