Oauthlib

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* Address missing OIDC errors and fix a typo in the AccountSelectionRequired exception.
* Update proxy keys on CaseInsensitiveDict.update().
* Redirect errors according to OIDC's response_mode.
* Added universal wheel support.
* Added log statements to except clauses.
* According to RC7009 Section 2.1, a client should include authentication credentials when revoking its tokens.
As discussed in 339, this is not make sense for public clients.
However, in that case, the public client should still be checked that is in fact a public client (authenticate_client_id).
* Improved prompt parameter validation.
* Added two error codes from RFC 6750.
* Hybrid response types are now be fragment-encoded.
* Added Python 3.6 to Travis CI testing and trove classifiers.
* Fixed BytesWarning issued when using a string placeholder for bytes object.
* Documented PyJWT dependency and improved logging and exception messages.
* Documentation improvements and fixes.

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* Dropped support for Python 2.6, 3.2 & 3.3.
* (FIX) `OpenIDConnector` will no longer raise an AttributeError when calling `openid_authorization_validator()` twice.

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* (FIX) Normalize handling of request.scopes list

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* (New Feature) **OpenID** support.
* Documentation improvements and fixes.

++++++++++++++++++++++++
- ``OAuth2Session`` now correctly uses the ``self.verify`` value if ``verify``
is not overridden in ``fetch_token`` and ``refresh_token``. Fixes `404
<https://github.com/requests/requests-oauthlib/issues/404>`_.
- ``OAuth2Session`` constructor now uses its ``client.scope`` when a ``client``
is provided and ``scope`` is not overridden. Fixes `408
<https://github.com/requests/requests-oauthlib/issues/408>`_
- Add support for Python 3.8-3.10

++++++++++++++++++++++++

- Add initial support for OAuth Mutual TLS (draft-ietf-oauth-mtls)
- Removed outdated LinkedIn Compliance Fixes
- Add eBay compliance fix
- Add Spotify OAuth 2 Tutorial
- Add support for python 3.8, 3.9
- Fixed LinkedIn Compliance Fixes
- Fixed ReadTheDocs Documentation and sphinx errors
- Moved pipeline to GitHub Actions