Bump oauthlib from 3.2.2 to 3.3.1

Bumps [oauthlib](https://github.com/oauthlib/oauthlib) from 3.2.2 to 3.3.1.
- [Release notes](https://github.com/oauthlib/oauthlib/releases)
- [Changelog](https://github.com/oauthlib/oauthlib/blob/master/CHANGELOG.rst)
- [Commits](oauthlib/oauthlib@v3.2.2...v3.3.1)

---
updated-dependencies:
- dependency-name: oauthlib
  dependency-version: 3.3.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -86,7 +86,7 @@ text_unidecode==1.3
 
 nameparser==1.1.3
 oauth2==1.9.0.post1
-oauthlib==3.2.2
+oauthlib==3.3.1
 pylti==0.7.0
 django-lti-provider==1.0.0