rename release builds

Author: maxbachmann

.github/workflows/releasebuild.yml

@@ -1,13 +1,12 @@
-name: Build
+name: Full Build
 
 on:
-  push:
-    branches:
-      - main
   release:
     types:
       - published
 
+  workflow_dispatch:
+
 jobs:
   build_sdist:
     name: Build source distribution