deps: update cryptography requirement from >=44.0 to >=47.0.0 (#33)

Updates the requirements on [cryptography](https://github.com/pyca/cryptography) to permit the latest version.
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](pyca/cryptography@44.0.0...47.0.0)

---
updated-dependencies:
- dependency-name: cryptography
  dependency-version: 47.0.0
  dependency-type: direct:production
...

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Author: dependabot[bot]

requirements.txt

@@ -8,6 +8,6 @@ aiosqlite>=0.20
 httpx>=0.28
 apscheduler>=3.10
 python-multipart>=0.0.27
-cryptography>=44.0
+cryptography>=47.0.0
 bcrypt>=5.0.0
 itsdangerous>=2.2