Merge pull request #121 from stripe-samples/dependabot/pip/server/python/stripe-5.4.0

Bump stripe from 5.3.0 to 5.4.0 in /server/python

Author: github-actions[bot]

server/python/requirements.txt

@@ -1,3 +1,3 @@
 Flask==2.2.2
 python-dotenv==0.20.0
-stripe==5.3.0
+stripe==5.4.0