chore(deps): update all dependencies

Author: renovate-bot

samples/snippets/requirements-test.txt

@@ -1,4 +1,4 @@
 pytest===7.4.4; python_version == '3.7'
-pytest==8.3.5; python_version >= '3.8'
+pytest==8.4.0; python_version >= '3.8'
 mock==5.2.0
 backoff==2.2.1

samples/snippets/requirements.txt

@@ -1,4 +1,4 @@
-google-cloud-pubsub==2.29.0
+google-cloud-pubsub==2.29.1
 google-cloud-storage==3.1.0
 pandas===1.3.5; python_version == '3.7'
 pandas===2.0.3; python_version == '3.8'