chore(datastore): update timeout of ds TransformerV2 tests to 30mins (#2550)

Author: manaswi223

.github/workflows/integ_test_datastore_v2.yml

@@ -30,7 +30,7 @@ jobs:
 
   datastore-integration-v2-test:
     continue-on-error: true
-    timeout-minutes: 20
+    timeout-minutes: 30
     needs: prepare-for-test
     runs-on: macos-12
     environment: IntegrationTest