add ubuntu-22.04 for 3.10 and 3.8

Author: rouilj

.github/workflows/ci-test.yml

@@ -29,10 +29,13 @@ jobs:
         #os: [ubuntu-latest, macos-latest, windows-latest]
         # if the ones above fail. fail the build
         experimental: [false]
-        #include:
+        include:
            # example: if 3.12 fails the jobs still succeeds
         #   - python-version: 3.12
         #     experimental: true
+            - python-version: [ "3.10", "3.8" ]
+              runs-on: ubuntu-22.04
+              experimental: true
 
     env:
       # get colorized pytest output even without a controlling tty