ci: include deploy job on workflow_dispatch

to allow manual deployment of docs with new V versions

.github/workflows/docs.yml

@@ -30,7 +30,7 @@ jobs:
 
   deploy:
     runs-on: ubuntu-latest
-    if: github.event_name == 'push' && github.ref_name == 'main' && github.repository == 'ttytm/vibe'
+    if: github.event_name != 'pull_request' && github.ref_name == 'main' && github.repository == 'ttytm/vibe'
     needs: build
     permissions:
       contents: read