Don't cancel builds from other (release) branches

Author: chadlwilson

.github/workflows/build_and_publish.yml

@@ -14,7 +14,7 @@ permissions:
   contents: write
 
 concurrency:
-  group: ${{ github.workflow }}
+  group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
 env: