fix(docs): allow workflow_dispatch to trigger deploy step

Original if: gated deploy on push events only, which made
workflow_dispatch runs skip deploy. Add workflow_dispatch as a valid
trigger for soft-launch testing.

Author: ctrl-alt-automate

.github/workflows/docs.yml

@@ -92,7 +92,7 @@ jobs:
           path: docs-build/site
 
   deploy:
-    if: github.event_name == 'push' && (github.ref == 'refs/heads/dev' || github.ref == 'refs/heads/main' || github.ref == 'refs/heads/docs/mkdocs-site')
+    if: (github.event_name == 'push' || github.event_name == 'workflow_dispatch') && (github.ref == 'refs/heads/dev' || github.ref == 'refs/heads/main' || github.ref == 'refs/heads/docs/mkdocs-site')
     needs: build
     runs-on: ubuntu-latest
     environment: