chore(deps): update dependency google-cloud-bigquery to v2.25.1 (#203)

Co-authored-by: Anthonios Partheniou <partheniou@google.com>

Author: renovate-bot

packages/google-cloud-bigquery-datatransfer/samples/snippets/requirements-test.txt

@@ -1,4 +1,4 @@
-google-cloud-bigquery==2.24.0
+google-cloud-bigquery==2.25.1
 google-cloud-pubsub==2.7.1
 pytest==6.2.4
 mock==4.0.3