Release v19.9.3

Added

• Add support for logging user events with key-value parameters using UserEventParam. (#70)
• Adds a new Surveys.setOnFinishCallback API that notifies the host app when a survey finishes,
  whether it was submitted, ended midway, or dismissed at the
  start. (#74)
• Add support for Swift-Package-Manager (
  SPM) (#76)

Changed

• Bump Luciq iOS SDK to
  v19.9.3 (#77). See release notes.
• Bump Luciq Android SDK to
  v19.10.0 (#77). See release notes.