Bump cryptography from 42.0.1 to 42.0.4 (#69)

Bumps [cryptography](https://github.com/pyca/cryptography) from 42.0.1 to 42.0.4.
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](pyca/cryptography@42.0.1...42.0.4)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -8,5 +8,5 @@ cosl
 ops > 2.5.0
 pydantic < 2
 requests
-cryptography == 42.0.1 # Pin prevents an error in the wheels due to crypto package moving to openssl 3.2.1
+cryptography == 42.0.4 # Pin prevents an error in the wheels due to crypto package moving to openssl 3.2.1
 jsonschema < 4  # Pin prevents the machine charm error "ModuleNotFoundError: No module named 'rpds.rpds'"