ci(action): update docker/build-push-action action to v6.19.0

Author: descope[bot]

.github/actions/pack/action.yml

@@ -134,7 +134,7 @@ runs:
         echo "EOF" >> $GITHUB_OUTPUT
 
     - name: Build and push
-      uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
+      uses: docker/build-push-action@ee4ca427a2f43b6a16632044ca514c076267da23 # v6.19.0
       id: push
       with:
         platforms: ${{ inputs.platforms }}