github-action: bump actions/checkout from 5.0.0 to 6.0.1

Bumps [actions/checkout](https://github.com/actions/checkout) from 5.0.0 to 6.0.1.
- [Release notes](https://github.com/actions/checkout/releases)
- [Commits](actions/checkout@v5...v6.0.1)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/build-image-base.yml

@@ -47,7 +47,7 @@ jobs:
         with:
           access_token: ${{ secrets.GITHUB_TOKEN }}
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6.0.1
         with:
           submodules: true
       - name: Log in to ghcr.io Container registry

.github/workflows/docker-image.yml

@@ -20,7 +20,7 @@ jobs:
     permissions:
       packages: write
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6.0.1
     - uses: ruby/setup-ruby@v1
       with:      
         bundler-cache: true # runs 'bundle install' and caches installed gems automatically
@@ -212,7 +212,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [ check_published_images ]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6.0.1
         with:
           ref: main
         if: ${{ github.ref_name == 'main' }}

.github/workflows/lint_on_pr.yml

@@ -20,7 +20,7 @@ jobs:
         with:
           access_token: ${{ secrets.GITHUB_TOKEN }}
       - name: Checkout Code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6.0.1
         with:
           fetch-depth: 0
 

.github/workflows/tag-docker-image.yml

@@ -19,7 +19,7 @@ jobs:
       packages: write
       contents: write
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: Login to DockerHub
         uses: docker/login-action@v3
         with: