Bump rsa from 3.4.2 to 4.7 (#80)

Bumps [rsa](https://github.com/sybrenstuvel/python-rsa) from 3.4.2 to 4.7.
- [Release notes](https://github.com/sybrenstuvel/python-rsa/releases)
- [Changelog](https://github.com/sybrenstuvel/python-rsa/blob/main/CHANGELOG.md)
- [Commits](sybrenstuvel/python-rsa@version-3.4.2...version-4.7)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -30,7 +30,7 @@ python-dateutil==2.8.1
 PyYAML==5.4
 redis==3.3.11
 requests==2.22.0
-rsa==3.4.2
+rsa==4.7
 s3transfer==0.3.0
 six==1.13.0
 tqdm==4.41.1