Switch to ubuntu-22.04 actions image

Author: Anton Hurlenko

.github/workflows/publish-to-pypi.yml

@@ -7,7 +7,7 @@ on:
 jobs:
   build-n-publish:
     name: Build and publish Python 🐍 distributions 📦 to PyPI and TestPyPI
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@master