Bump cryptography from 3.3.2 to 39.0.1

Bumps [cryptography](https://github.com/pyca/cryptography) from 3.3.2 to 39.0.1.
- [Release notes](https://github.com/pyca/cryptography/releases)
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](pyca/cryptography@3.3.2...39.0.1)

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

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

Author: dependabot[bot]

requirements_dev.txt

@@ -6,6 +6,6 @@ flake8==2.6.0
 tox==2.3.1
 coverage==4.1
 Sphinx==1.4.8
-cryptography==3.3.2
+cryptography==39.0.1
 PyYAML==5.4
 python-coveralls==2.9.1