Run frontend linting pipeline in CI on Ubuntu 22.04

Author: mcserep

.github/workflows/linting.yml

@@ -6,7 +6,7 @@ permissions: read-all
 
 jobs:
     linting:
-        runs-on: ubuntu-20.04
+        runs-on: ubuntu-22.04
         defaults:
             run:
                 working-directory: ./webgui-new/