Release v3.8.0

Added

• API rate limit error status can be 403 (matthewnessworthy) #1072
• Add method to use generate release notes endpoint (GuySartorelli) #1074
• Fix typehint for repository dispatch method (cweagans) #1066

Changed

• Update security.md (secalith-code) #1076

Fixed

• dont require encoding (gemal) #1071