Bump stripe from 7.5.0 to 7.7.0

Bumps [stripe](https://github.com/stripe/stripe-python) from 7.5.0 to 7.7.0.
- [Release notes](https://github.com/stripe/stripe-python/releases)
- [Changelog](https://github.com/stripe/stripe-python/blob/master/CHANGELOG.md)
- [Commits](stripe/stripe-python@v7.5.0...v7.7.0)

---
updated-dependencies:
- dependency-name: stripe
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -33,7 +33,7 @@ service-identity==23.1.0
 six==1.16.0
 slack-sdk==3.24.0
 sqlparse==0.4.4
-stripe==7.5.0
+stripe==7.7.0
 Twisted==23.10.0
 txaio==23.1.1
 typing_extensions==4.8.0