chore: bump cryptography from 38.0.3 to 38.0.4 in /tests

Bumps [cryptography](https://github.com/pyca/cryptography) from 38.0.3 to 38.0.4.
- [Release notes](https://github.com/pyca/cryptography/releases)
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/pyca/cryptography/compare/38.0.3...38.0.4)

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

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

tests/requirements_py3.txt

@@ -3,7 +3,7 @@ bcrypt==4.0.1
 certifi==2022.9.24
 cffi==1.15.1
 chardet==5.0.0
-cryptography==38.0.3
+cryptography==38.0.4
 filelock==3.8.0
 idna==3.4
 iniconfig==1.1.1