Merge pull request #174 from matysek/lcore-311

LCORE-311: Fix4 pushing release image to quay from tag

Author: tisnik

.github/workflows/build_and_push_release.yaml

@@ -8,7 +8,7 @@ on:
 env:
   IMAGE_NAME: lightspeed-stack
   IMAGE_NAMESPACE: lightspeed-core
-  REGISTRY: quay.io
+  IMAGE_REGISTRY: quay.io
   GIT_TAG: ${{ github.ref_name }}
   LATEST_TAG: latest
   CONTAINER_FILE: Containerfile