ci: Ignore all branches starting with `release`.

Set the ignored branches pattern to `release*` for the normal ci workflow.

.github/workflows/ci-build.yml

@@ -3,8 +3,7 @@ name: Continous build - build and test on every push
 on:
   push:
     branches-ignore:
-      - release
-      - 'releases/**'
+      - 'release*'
       - gh-pages
 
 jobs: