Bump dependency on sphinx-tabs

This latest patch release fixes a RemovedInSphinx90Warning that can be
seen when building the docs without ignoring any warnings via
PYTHONWARNINGS.

Signed-off-by: Rodrigo Tobar <[email protected]>

Author: rtobar

requirements-own.txt

@@ -12,5 +12,5 @@ sphinx-autorun
 sphinxemoji
 sphinx-intl>=2.3.0
 sphinx-lint==0.7.0
-sphinx-tabs==3.4.5
+sphinx-tabs==3.4.7
 tabulate