⬆️ Upgrade actions/checkout action to v5 (#126)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/docker.yaml

@@ -15,7 +15,7 @@ jobs:
       id-token: write
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3.11.1

.github/workflows/pr_autofixes.yaml

@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0  # We need the full history for comparing branches
           ref: ${{ github.head_ref }}  # Check out the PR branch

.github/workflows/quality.yaml

@@ -25,7 +25,7 @@ jobs:
     name: ${{ matrix.name }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Setup PDM
         uses: pdm-project/setup-pdm@v4
@@ -43,7 +43,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Setup Copywrite
         uses: hashicorp/setup-copywrite@32f9f1c86f661b8a51100768976a06f1b281a035
       - name: Check Header Compliance