Build(deps): Bump cryptography from 41.0.3 to 41.0.4 in /mdl-ref-server

Bumps [cryptography](https://github.com/pyca/cryptography) from 41.0.3 to 41.0.4.
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](pyca/cryptography@41.0.3...41.0.4)

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

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

mdl-ref-server/requirements.txt

@@ -3,7 +3,7 @@ cbor==1.0.0
 certifi==2023.7.22
 cffi==1.14.5
 chardet==4.0.0
-cryptography==41.0.3
+cryptography==41.0.4
 idna==2.10
 Naked==0.1.31
 pycparser==2.20