chore(deps): update dependency mock to v4 [(#4287)](#4287)

renovate-bot · leahecole · leahecole · commit bd65c93ddb1c · 2023-07-11T19:59:50.000+03:00
* chore(deps): update dependency mock to v4

* specify mock version for appengine python 2

Co-authored-by: Leah Cole &lt;coleleah@google.com&gt;
diff --git a/bigquery-datatransfer/snippets/requirements-test.txt b/bigquery-datatransfer/snippets/requirements-test.txt
@@ -1,2 +1,2 @@
 pytest==5.4.3
-mock==3.0.5
+mock==4.0.2
