Bump cryptography from 2.3 to 42.0.0

Bumps [cryptography](https://github.com/pyca/cryptography) from 2.3 to 42.0.0.
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](pyca/cryptography@2.3...42.0.0)

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

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

setup.py

@@ -30,6 +30,6 @@ def get_version(rel_path):
     include_package_data=True,
     zip_safe=True,
     license="MIT",
-    install_requires=["wxPython==4.2.0", "cryptography==2.3", "cffi==1.14.4"],
+    install_requires=["wxPython==4.2.0", "cryptography==42.0.0", "cffi==1.14.4"],
     extras_require={"dev": ["pre-commit"]},
 )