Update publish.yml

Author: codelion

.github/workflows/publish.yml

@@ -6,7 +6,7 @@ on:
 jobs:
   pypi-publish:
     name: Publish release to PyPI
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     environment:
       name: pypi
       url: https://pypi.org/p/optillm