chore(deps): update dependency websocket-client to v1.2.2 (GoogleCloudPlatform#7206)

Co-authored-by: Leah E. Cole <[email protected]>

Author: renovate-bot

appengine/flexible/websockets/requirements-test.txt

@@ -1,3 +1,3 @@
 pytest==6.2.4
 retrying==1.3.3
-websocket-client==1.2.1
+websocket-client==1.2.2