SDK for billions app version 1.3.1

Merge pull request #465 from 0xPolygonID/v2.4.0

New version.

Merge pull request #460 from 0xPolygonID/hotfix/utf-8

fix issue with utf-8 chars not parsed correctly

Merge pull request #444 from 0xPolygonID/refactor/drop_native_poseidon

Added env and auth claim retrieval cache.

Merge pull request #447 from 0xPolygonID/5eeman-patch-1

Update pubspec.yaml

Merge pull request #445 from 0xPolygonID/version_update

Updated version.

Merge pull request #427 from Leautp/fix/refresh-claim-id

Refresh credential use-case not deleting old claim (== -> !=)

Merge pull request #412 from 0xPolygonID/develop

SDK Release 2.3.1 PR

Merge pull request #395 from 0xPolygonID/develop

Intermediate release with Amoy network support

Merge pull request #375 from 0xPolygonID/develop

Release v2.2.9