[Snyk] Security upgrade cryptography from 47.0.0 to 48.0.1

[mandibles232]

Snyk has created this PR to fix 1 vulnerabilities in the pip dependencies of this project.

Snyk changed the following file(s):

• requirements.txt

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[mandibles232]

This major version upgrade introduces several breaking changes, including dropping support for an older Python version and stricter validation rules.

Breaking Changes in 48.0.0:

• Python 3.8 Support Removed: cryptography now requires Python 3.9 or later. Builds will fail in environments using Python 3.8.
• Stricter X.509 CRL Validation: Loading an X.509 Certificate Revocation List (CRL) will now raise a ValueError if the inner and outer signature algorithms do not match. Previously, this was only caught during signature validation.
• Build Process Changes: For users who build the package from source against a custom OpenSSL version, the environment variables for linking (CFLAGS, LDFLAGS, etc.) are no longer supported and a new configuration method is required.

Recommendation: Before upgrading, ensure your environment is running Python 3.9+. Review any code that parses X.509 CRLs to handle potential ValueError exceptions from the stricter validation. If you build from source with a custom OpenSSL, you must update your build scripts.

Source: Cryptography Changelog

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