Run releases on release/2.x branch

Author: TimvdLippe

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ name: CI
 
 on:
   push:
-    branches: ['release/1.x']
+    branches: ['release/2.x']
     tags-ignore: [v*] # release tags are automatically generated after a successful CI build, no need to run CI against them
   pull_request:
     branches: ['**']