Authsignal

- Fix JWT decryption issue

None

- Fix error that occurs if payload is omitted on the Track function

- Improve error handling

- Fix issues with dependency installation

- Fix version reference

**Breaking changes:**

-Remove `identify` function

-Rename `track_action` function to `track`

-Rename `action_code` params to `action`

-Add `validate_challenge` function

-Transform all return types to `snake_case`