Add GHA workflow for pushing releases to Quay

.github/workflows/release.yaml

@@ -3,13 +3,14 @@
 name: Release
 
 on:
-  push:
-    branches: [devel]
+  release:
+    types:
+      - created
 
 jobs:
   release:
     runs-on: ubuntu-18.04
-    name: release
+    name: Push tagged image to Quay
     steps:
       - uses: actions/checkout@v2
 
@@ -22,13 +23,13 @@ jobs:
 
       - name: Build Image
         run: |
-          operator-sdk build awx-operator:devel
+          operator-sdk build awx-operator:${{ github.event.release.tag_name }}
 
       - name: Push To Quay
         uses: redhat-actions/push-to-registry@v2.1.1
         with:
           image: awx-operator
-          tags: devel
+          tags: ${{ github.event.release.tag_name }}
           registry: quay.io/ansible/
           username: ${{ secrets.QUAY_USERNAME }}
           password: ${{ secrets.QUAY_TOKEN }}