chore(deps): update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/alpha.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check Out Repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Login to registry
         uses: "docker/login-action@v3.3.0"
         with:

.github/workflows/docker.yml

@@ -19,7 +19,7 @@ jobs:
           fi
           echo "tag=$TAG_NAME" >> $GITHUB_OUTPUT
       - name: Check Out Repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Login to registry
         uses: "docker/login-action@v3.3.0"
         with: