Bump sphinx-tabs from 2.0.1 to 2.1.0

Bumps [sphinx-tabs](https://github.com/executablebooks/sphinx-tabs) from 2.0.1 to 2.1.0.
- [Release notes](https://github.com/executablebooks/sphinx-tabs/releases)
- [Changelog](https://github.com/executablebooks/sphinx-tabs/blob/master/CHANGELOG.md)
- [Commits](executablebooks/sphinx-tabs@v2.0.1...v2.1.0)

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

Author: dependabot-preview[bot]

requirements.txt

@@ -1,7 +1,7 @@
 -i https://pypi.org/simple/
 
 sphinx==3.5.2
-sphinx-tabs==2.0.1
+sphinx-tabs==2.1.0
 sphinxemoji==0.1.8
 sphinx-rtd-theme==0.5.1
 sphinx-autobuild==2020.9.1