chore(deps): update dependency twilio to v6.63.2 (#6678)

Co-authored-by: Leah E. Cole <6719667+leahecole@users.noreply.github.com>

Author: renovate-bot

appengine/flexible/twilio/requirements.txt

@@ -1,3 +1,3 @@
 Flask==2.0.1
 gunicorn==20.1.0
-twilio==6.63.1
+twilio==6.63.2