update ubuntu for Github Actions

Author: Judahmeek

.github/workflows/ruby.yml

@@ -11,7 +11,7 @@ jobs:
   test:
     strategy:
       fail-fast: false
-    runs-on: ubuntu-2.20
+    runs-on: ubuntu-22.04
     env:
       # Workaround b/c upgrading Minitest broke some mocking expectations
       # having to do with automatic kwarg splatting