chore(deps): update actions/checkout digest to b4ffde6

Author: renovate[bot]

.github/workflows/docker.yml

@@ -55,7 +55,7 @@ jobs:
     needs: build
     steps:
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
 
       - uses: peter-evans/dockerhub-description@v3
         with: