chore(deps): bump rsa from 4.7.2 to 4.8

[dependabot[bot]]

Bumps rsa from 4.7.2 to 4.8.

Changelog

Sourced from rsa's changelog.

Version 4.8 - released 2021-11-24

• Switch to Poetry for dependency and release management.
• Compatibility with Python 3.10.
• Chain exceptions using raise new_exception from old_exception (#157)
• Added marker file for PEP 561. This will allow type checking tools in dependent projects to use type annotations from Python-RSA (#136).
• Use the Chinese Remainder Theorem when decrypting with a private key. This makes decryption 2-4x faster (#163).

Commits

• 47a7db1 More version bump to 4.8
• cf47106 Fix update_version.sh to follow Black-style formatting
• 1ba4a17 Bumped version to 4.8
• 7b52296 Add compat with py3.10 to changelog
• 7ed1b5e Remove obsolete file
• 3e9b338 Fix typos
• a038aef Update dependencies for Python 3.10 compatibility
• 39c30a5 Fix testing with Tox + Poetry
• fe4db61 Run 'poetry lock' to bump typed_ast to support Python 3.10
• 1f77949 Add support for Python 3.10
• Additional commits viewable in compare view

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[dependabot[bot]]

The following labels could not be found: dependencies.

[dependabot[bot]]

A newer version of rsa exists, but since this PR has been edited by someone other than Dependabot I haven't updated it. You'll get a PR for the updated version as normal once this PR is merged.

[pcaversaccio]

@dependabot recreate

[dependabot[bot]]

Looks like rsa is no longer a dependency, so this is no longer needed.