chore(deps): update dependency pytest to v7.4.0 (#316)

Co-authored-by: Anthonios Partheniou <[email protected]>

Author: renovate-bot

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

@@ -1,2 +1,2 @@
-pytest==7.3.2
+pytest==7.4.0
 google-cloud-testutils==1.3.3