Bump stripe from 11.6.0 to 12.4.0

Bumps [stripe](https://github.com/stripe/stripe-python) from 11.6.0 to 12.4.0.
- [Release notes](https://github.com/stripe/stripe-python/releases)
- [Changelog](https://github.com/stripe/stripe-python/blob/master/CHANGELOG.md)
- [Commits](stripe/stripe-python@v11.6.0...v12.4.0)

---
updated-dependencies:
- dependency-name: stripe
  dependency-version: 12.4.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -2,4 +2,4 @@ Flask==3.1.0
 python-dotenv==1.1.0
 redis==5.2.1
 requests==2.32.3
-stripe==11.6.0
+stripe==12.4.0