prepare 3.2.3 release

[LaunchDarklyReleaseBot]

[3.2.3] - 2022-11-16

Fixed:

• The SDK no longer updates SharedPreferences data during every flag evaluation. It was using this to store summary counters for analytics events; however, the small chance that a subset of summary data could be lost, if the application terminated before events were delivered, was outweighed by the performance cost (and other types of analytics data were not being stored like this anyway). It now uses a simpler in-memory data structure. (#194)