Bump pyopenssl from 24.2.1 to 24.3.0 in /spiffe-tls (#262)

Bumps [pyopenssl](https://github.com/pyca/pyopenssl) from 24.2.1 to 24.3.0.
- [Changelog](https://github.com/pyca/pyopenssl/blob/main/CHANGELOG.rst)
- [Commits](pyca/pyopenssl@24.2.1...24.3.0)

---
updated-dependencies:
- dependency-name: pyopenssl
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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