feat: Add catch-all release branch Docker config

Author: gs-olive

.github/workflows/docker_builder.yml

@@ -6,7 +6,7 @@ on:
     branches:
       - main
       - nightly
-      - release/2.2
+      - release/*
 
 # If pushes to main are made in rapid succession,
 # cancel existing docker builds and use newer commits