Bump cryptography from 43.0.1 to 44.0.1 in /app/backend

Bumps [cryptography](https://github.com/pyca/cryptography) from 43.0.1 to 44.0.1.
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](pyca/cryptography@43.0.1...44.0.1)

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

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

Author: dependabot[bot]

app/backend/requirements.txt

@@ -11,7 +11,7 @@ cffi==1.16.0
 charset-normalizer==3.3.2
 click==8.1.7
 colorama==0.4.6
-cryptography==43.0.1
+cryptography==44.0.1
 Flask==3.0.1
 h11==0.14.0
 h2==4.1.0