Update oauthlib to 3.1.0

[pyup-bot]

This PR updates oauthlib from 3.0.1 to 3.1.0.

Changelog

3.1.0

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OAuth2.0 Provider - Features
* 660: OIDC add support of nonce, c_hash, at_hash fields
- New RequestValidator.fill_id_token method
- Deprecated RequestValidator.get_id_token method
* 677: OIDC add UserInfo endpoint
- New RequestValidator.get_userinfo_claims method

OAuth2.0 Provider - Security
* 665: Enhance data leak to logs
- New default to not expose request content in logs
- New function `oauthlib.set_debug(True)`
* 666: Disabling query parameters for POST requests

OAuth2.0 Provider - Bugfixes
* 670: Fix validate_authorization_request to return the new PKCE fields
* 674: Fix token_type to be case-insensitive (bearer and Bearer)

OAuth2.0 Client - Bugfixes
* 290: Fix Authorization Code's errors processing
* 603: BackendApplication.Client.prepare_request_body use the "scope" argument as intended.
* 672: Fix edge case when expires_in=Null

OAuth1.0 Client
* 669: Add case-insensitive headers to oauth1 BaseEndpoint

3.0.2

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* 650: Fixed space encoding in base string URI used in the signature base string.
* 652: Fixed OIDC /token response which wrongly returned "&state=None"
* 654: Doc: The value `state` must not be stored by the AS, only returned in /authorize response.
* 656: Fixed OIDC "nonce" checks: raise errors when it's mandatory

Links

• PyPI: https://pypi.org/project/oauthlib
• Changelog: https://pyup.io/changelogs/oauthlib/
• Repo: https://github.com/oauthlib/oauthlib