[SDK] [Android] Release v3.2.0

GitHub release
Integration guide
Upgrading to v3 guide

Changelog:

• Fix grouped notifications
• Support new notification fields, like timeoutAfter
• Allow to selectively close displayed notifications using a data push
• Permit disabling geolocation
• Overrides for country, currency, locale and time zone
• Remove federatedId collection
• Flush pending changes before withdrawing user consent
• Fix sorting of cached files for expiration