Bump cryptography from 48.0.1 to 50.0.0

Bumps [cryptography](https://github.com/pyca/cryptography) from 48.0.1 to 50.0.0.
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/pyca/cryptography/compare/48.0.1...50.0.0)

---
updated-dependencies:
- dependency-name: cryptography
  dependency-version: 50.0.0
  dependency-type: direct:production
...

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

requirements.txt

@@ -1,6 +1,6 @@
 # cryptography 49+ ships no Intel macOS wheels (arm64 only); esptool caps <49 there.
 # Keep 48.0.1, the last universal2 release, so esphome stays installable on Intel Macs.
-cryptography==50.0.1; platform_system != "Darwin" or platform_machine != "x86_64"
+cryptography==50.0.0; platform_system != "Darwin" or platform_machine != "x86_64"
 cryptography==48.0.1; platform_system == "Darwin" and platform_machine == "x86_64"
 voluptuous==0.16.0
 PyYAML==6.0.3