Bump cryptography from 41.0.1 to 43.0.0 in /app

Bumps [cryptography](https://github.com/pyca/cryptography) from 41.0.1 to 43.0.0.
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](pyca/cryptography@41.0.1...43.0.0)

---
updated-dependencies:
- dependency-name: cryptography
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

app/requirements.txt

@@ -13,7 +13,7 @@ click==8.1.2
 click-didyoumean==0.3.1
 click-plugins==1.1.1
 click-repl==0.2.0
-cryptography==41.0.1
+cryptography==43.0.0
 datapunt-keycloak-oidc @ git+https://github.com/remyvdwereld/keycloak_oidc_top.git@main
 debugpy==1.4.1
 Django==4.2.14