build: add workflow_dispatch (#41)

Author: asbiin

.github/workflows/_semantic_release.yml

@@ -1,6 +1,7 @@
 name: Semantic release
 
 on:
+  workflow_dispatch:
   push:
     branches:
       - main
@@ -26,4 +27,4 @@ jobs:
         with:
           tag_name: v${{ needs.semantic-release.outputs.new_release_major_version }}
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}