Bump cryptography from 38.0.4 to 42.0.4 in /hacking (#45)

Bumps [cryptography](https://github.com/pyca/cryptography) from 38.0.4 to 42.0.4.
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](pyca/cryptography@38.0.4...42.0.4)

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

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hacking/requirements_dev.txt

@@ -11,7 +11,7 @@ cfgv==3.2.0
 chardet==4.0.0
 colorama==0.4.6; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6'
 coverage==5.5
-cryptography==38.0.4; python_version >= '3.6'
+cryptography==42.0.4; python_version >= '3.6'
 distlib==0.3.1
 docutils==0.16
 filelock==3.0.12