fix: DEVPLAT-3294 Update github actions due to ubuntu-20.04 deprecation

Author: kristianmills

.github/workflows/validate-pr.yml

@@ -7,7 +7,7 @@ on:
       - synchronize
 jobs:
   main:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
     - name: Validate PR Title
       uses: amannn/[email protected]