deps: update docker/build-push-action action to v6.19.0

Author: eclipse-apoapsis-bot

.github/workflows/docker-build.yml

@@ -150,7 +150,7 @@ jobs:
 
     - name: Build ${{ matrix.docker.image }} Image
       if: ${{ matrix.docker.dockerfile != '' }}
-      uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
+      uses: docker/build-push-action@ee4ca427a2f43b6a16632044ca514c076267da23 # v6.19.0
       with:
         context: ${{ matrix.docker.context }}
         file: ${{ matrix.docker.context }}/${{ matrix.docker.dockerfile }}