chore(deps): update all dependencies to v2.15.1 (#553)

* chore(deps): update all dependencies to v2.15.1

* revert

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

Author: renovate-bot

dialogflow/requirements.txt

@@ -1,2 +1,2 @@
-google-cloud-dialogflow==2.15.0
+google-cloud-dialogflow==2.15.1
 Flask==2.2.2