Fix GitHub workflows

Author: arithy

.github/workflows/release.yml

@@ -1,6 +1,10 @@
 name: Release of packages
 
 on:
+  workflow_dispatch:
+    branches:
+      - main
+      - develop
   release:
     types:
       - published
@@ -189,7 +193,7 @@ jobs:
       - name: Sign distribution with Sigstore
         uses: sigstore/gh-action-sigstore-python@v3.0.0
         with:
-          inputs: dist/
+          inputs: ./dist/*.whl
 
       - name: Upload artifact signatures to GitHub Release
         env: