CI: update image and actions

Author: lazka

Diff for: .github/workflows/test.yaml

@@ -9,11 +9,11 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Test
         run: |