Upgrade Windows CI version to 2022 (#129)

Author: ChrisJefferson

.github/workflows/CI.yml

@@ -76,7 +76,7 @@ jobs:
   test-cygwin:
     name: "cygwin64 - GAP master - HPCGAP no"
     if: ${{ !(github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository) }}
-    runs-on: windows-2019
+    runs-on: windows-2022
     env:
       CHERE_INVOKING: 1
     steps: