chore(.github): update docker-ghcr actions (freeCodeCamp#60301)

Author: ShaunSHamilton

.github/workflows/docker-ghcr.yml

@@ -36,15 +36,15 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Cache Docker layers
-        uses: actions/cache@e12d46a63a90f2fae62d114769bbf2a179198b5c # v3
+        uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
         with:
           path: /tmp/.buildx-cache
           key: ${{ runner.os }}-buildx-${{ matrix.images }}-${{ github.sha }}
           restore-keys: |
             ${{ runner.os }}-buildx-${{ matrix.images }}-
 
       - name: Build and push Docker image
-        uses: docker/build-push-action@ca052bb54ab0790a636c9b5f226502c73d547a25 # v5
+        uses: docker/build-push-action@14487ce63c7a62a4a324b0bfb37086795e31c6c1 # v6.16.0
         with:
           context: ./docker/${{ matrix.images }}
           push: true