Update docker/build-push-action digest to ee4ca42 (#231)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/docker-publish.yml

@@ -35,7 +35,7 @@ jobs:
         uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3
 
       - name: Build and push
-        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6
+        uses: docker/build-push-action@ee4ca427a2f43b6a16632044ca514c076267da23 # v6
         with:
           context: ./src
           platforms: linux/amd64,linux/arm64