Bump cryptography from 41.0.3 to 43.0.1 in /backend/deploy

Bumps [cryptography](https://github.com/pyca/cryptography) from 41.0.3 to 43.0.1.
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](pyca/cryptography@41.0.3...43.0.1)

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

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

backend/deploy/requirements.txt

@@ -27,7 +27,7 @@ click-repl==0.3.0
 colorama==0.4.6
 coreapi==2.3.3
 coreschema==0.0.4
-cryptography==41.0.3
+cryptography==43.0.1
 defusedxml==0.7.1
 diff-match-patch==20230430
 Django==3.2.14