Bump rsa from 3.4.2 to 4.7

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](https://github.com/sybrenstuvel/python-rsa/compare/version-3.4.2...version-4.7)

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

requirements.txt

@@ -119,7 +119,7 @@ relint==1.2.1
 requests-futures==1.0.0
 requests-toolbelt==0.9.1
 requests==2.24.0
-rsa==3.4.2
+rsa==4.7
 rtv==1.27.0
 Scrapy==1.8.0
 semver==2.9.0
@@ -251,7 +251,7 @@ python-vlc==3.0.10114
 pyzmq==18.1.0
 regex==2019.11.1
 requests==2.24.0
-rsa==3.4.2
+rsa==4.7
 sh==1.12.14
 six==1.15.0
 soupsieve==2.0.1