Bump requests-oauthlib from 0.8.0 to 1.0.0 (CloudBotIRC#246)

Bumps [requests-oauthlib](https://github.com/requests/requests-oauthlib) from 0.8.0 to 1.0.0.
- [Release notes](https://github.com/requests/requests-oauthlib/releases)
- [Changelog](https://github.com/requests/requests-oauthlib/blob/master/HISTORY.rst)
- [Commits](requests/requests-oauthlib@v0.8.0...v1.0.0)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements.txt

@@ -13,7 +13,7 @@ psutil==5.4.5
 pyenchant==2.0.0
 pythonwhois==2.4.3
 requests==2.19.1
-requests-oauthlib==0.8.0
+requests-oauthlib==1.0.0
 SQLAlchemy==1.2.6
 tweepy==3.6.0
 watchdog==0.8.3