Change workflow_call to workflow_dispatch in release.yaml for manual trigger support

Author: simonharrer

.github/workflows/release.yaml

@@ -2,7 +2,7 @@ on:
   push:
     # Pattern matched against refs/tags
     tags: ["v[0-9]+", "v[0-9]+.[0-9]+", "v[0-9]+.[0-9]+.[0-9]+", "v[0-9]+.[0-9]+.[0-9]+.post[0-9]+", "v[0-9]+.[0-9]+.[0-9]+.dev[0-9]+",]
-  workflow_call:
+  workflow_dispatch:
 
 permissions:
   contents: read