Bump cryptography from 40.0.2 to 41.0.2 in /mercury

Bumps [cryptography](https://github.com/pyca/cryptography) from 40.0.2 to 41.0.2.
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](pyca/cryptography@40.0.2...41.0.2)

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

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

mercury/requirements.txt

@@ -1,3 +1,3 @@
-cryptography==40.0.2
+cryptography==41.0.2
 pika==1.3.2
 pmercury==0.5.2.44