Update docker/build-push-action digest to 68d0dc2

Author: renovate[bot]

.github/workflows/docker-image.yml

@@ -30,7 +30,7 @@ jobs:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
 
       - name: Build and push Docker image
-        uses: docker/build-push-action@6e95f19fb8c9e00a1a391941edbc0ae30c1799f7
+        uses: docker/build-push-action@68d0dc20df34f84bca5214ce60a32e2d589dbaf2
         with:
           context: .
           push: true