ci(github-action)!: Update actions/checkout action (v4 → v6)

| datasource  | package          | from | to |
| ----------- | ---------------- | ---- | -- |
| github-tags | actions/checkout | v4   | v6 |

Author: erhardt-consulting-bot

.github/workflows/build-container.yml

@@ -41,7 +41,7 @@ jobs:
           sudo apt-get install -y qemu-user-static
 
       - name: Checkout repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Setup environment variables
         run: |

.github/workflows/build-pg-verein-pr.yml

@@ -20,7 +20,7 @@ jobs:
       postgres: ${{ steps.postgres_version.outputs.POSTGRES_VERSION }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Get Postgres version
         id: postgres_version

.github/workflows/build-pg-verein.yml

@@ -20,7 +20,7 @@ jobs:
       postgres: ${{ steps.postgres_version.outputs.POSTGRES_VERSION }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Get Postgres version
         id: postgres_version

.github/workflows/deploy-artifacts.yml

@@ -36,7 +36,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Setup Pages
         uses: actions/configure-pages@983d7736d9b0ae728b81ab479565c72886d7745b # v5