v0.50.0

Added

• add create_comment to PullRequestHandler (#880)
• Add support for exchanging oauth code for access token (#780)
• add get_app (#757)
• Add ability to update an existing label (#786)
• Added converted_from_draft to Event (#859)

Fixed

• Use PUT not PATCH for pull request reviews (#879)
• cargo fmt, cargo test, Set MSRV to 1.85.0 (#878)
• deser generate repo as respository (#812)
• use new search model on search function
• revert commit back to correct structure

Other

• [breaking] remove the either dependency (#883)
• added issue_field_added to Event enum (#882)
• update MSRV to 1.95.0
• don't include unconditional backtrace in Display impl (#824)
• add a simple test for compare commits
• remove duplicated GitUser
• create search models submodule
• move repository model from commits module
• move maybe_empty to models module
• remove Option<> for some fields of PullRequest (#873)