Merge branch 'ds/github-actions-use-newer-ubuntu' into maint

Update the version of Ubuntu used for GitHub Actions CI from 18.04
to 22.04.

* ds/github-actions-use-newer-ubuntu:
  ci: update 'static-analysis' to Ubuntu 22.04

Author: gitster

.github/workflows/main.yml

@@ -309,7 +309,7 @@ jobs:
     if: needs.ci-config.outputs.enabled == 'yes'
     env:
       jobname: StaticAnalysis
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v2
     - run: ci/install-dependencies.sh