More changes to workflow (#2500)

.github/workflows/cd-push.yml

@@ -25,5 +25,7 @@ jobs:
         uses: docker/build-push-action@v2
         with:
           push: true
-          tags: greenlight:latest
+          tags: |
+            bigbluebutton/greenlight:master
+            bigbluebutton/greenlight:latest
           build-args: version_code=${GITHUB_SHA::8}

.github/workflows/cd-release.yml

@@ -25,7 +25,7 @@ jobs:
         with:
           push: true
           tags: |
-            greenlight:latest
-            greenlight:v2
-            greenlight:${GITHUB_REF}
+            bigbluebutton/greenlight:latest
+            bigbluebutton/greenlight:v2
+            bigbluebutton/greenlight:${GITHUB_REF##*/}
           build-args: version_code=${GITHUB_REF##*/release-}