Bump pubnub-gson from 4.31.1 to 4.31.3
Bump pubnub-gson from 4.31.1 to 4.31.3

Bumps [pubnub-gson](https://github.com/pubnub/java) from 4.31.1 to 4.31.3.
- [Release notes](https://github.com/pubnub/java/releases)
- [Changelog](https://github.com/pubnub/java/blob/master/CHANGELOG.md)
- [Commits](https://github.com/pubnub/java/compare/v4.31.1...v4.31.3)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
douggie/XChange,timmolter/XChange,stachon/XChange,andre77/XChange