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](https://github.com/executablebooks/sphinx-tabs/compare/v2.0.1...v2.1.0)

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

requirements-dev.txt

@@ -11,7 +11,7 @@ Pallets-Sphinx-Themes==1.2.3
 Sphinx==3.5.1
 sphinx-issues==1.2.0
 sphinx-jinja==1.1.1
-sphinx-tabs==2.0.1
+sphinx-tabs==2.1.0
 sphinxcontrib-programoutput==0.16
 sphinx-autobuild==2020.9.1
 linuxdoc==20210110