Bumping version to 5.2.1 (#1694)
Bumping version to 5.2.1 (#1694)

Co-authored-by: runway-github[bot] <e145b488414b1c74f95245740f03326121183db9@users.noreply.github.com>
kickstarter/ios-oss,kickstarter/ios-oss,kickstarter/ios-oss