force 22.04 for testing jib

Author: patapenka-alexey

.github/workflows/testing.yml

@@ -21,7 +21,7 @@ jobs:
       (github.event_name == 'pull_request' &&
         github.event.pull_request.head.repo.full_name != github.repository)
 
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-22.04
 
     strategy:
       fail-fast: false
@@ -138,7 +138,7 @@ jobs:
         github.event.pull_request.head.repo.full_name != github.repository &&
         github.event.label.name == 'full-ci')
 
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-22.04
 
     strategy:
       fail-fast: false
@@ -205,7 +205,7 @@ jobs:
     if: (github.event_name == 'push') ||
       (github.event_name == 'pull_request' &&
         github.event.pull_request.head.repo.full_name != github.repository)
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-22.04
 
     strategy:
       fail-fast: false