Re-add 3.8

Author: brianschubert

.github/workflows/ci.yml

@@ -38,6 +38,7 @@ jobs:
         # For available versions, see:
         # https://raw.githubusercontent.com/actions/python-versions/main/versions-manifest.json
         python-version:
+          - "3.8"
           - "3.9"
           - "3.9.12"
           - "3.10"