Update {% if include_docs %}docs.yaml{% endif %}.jinja

Author: twsl

project/.github/workflows/{% if include_docs %}docs.yaml{% endif %}.jinja

@@ -20,7 +20,7 @@ concurrency:
 
 env:
   ARTIFACT: docs
-{% if 'road-runner' in github_runner %}{% set github_runner = github_runner + [github_runner_onprem] %}{% endif %}
+{% if 'road-runner' in github_runner %}{% set github_runner = [github_runner_onprem] %}{% endif %}
 jobs:
   build-docs:
     name: Build docs