pass version to rake task

Author: rmosolgo

.github/workflows/apidocs.yaml

@@ -35,7 +35,7 @@ jobs:
           bundler-cache: true
       - name: Build API docs
         run: |
-          bundle exec rake site:fetch_latest apidocs:gen_version
+          bundle exec rake site:fetch_latest apidocs:gen_version["${{ inputs.ref || env.GITHUB_REF }}"]
       - name: Commit changes as last committer
         run: |
           git config --global user.name rmosolgo