[4.x] Also publish 4.x snapshots (#6631)

Author: martinbonnin

.github/workflows/push.yml

@@ -2,7 +2,7 @@ name: push
 
 on:
   push:
-    branches: [ main ]
+    branches: [ main, release-4.x ]
     paths-ignore:
       - 'docs/**'
       - '*.md'