Bump cryptography from 3.4.8 to 44.0.0

Bumps [cryptography](https://github.com/pyca/cryptography) from 3.4.8 to 44.0.0.
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](pyca/cryptography@3.4.8...44.0.0)

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

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

requirements.txt

@@ -26,6 +26,6 @@ tftpy
 # some freezegun versions broken
 freezegun!=0.3.13
 pytest
-cryptography==3.4.8
+cryptography==44.0.0
 sphinx_rtd_theme
 psutil