A new version of sphinx was released May 29 2022
which requires a language setting in config otherwise
a warning (treated as error) causes the sphinx operation
to fail.
Updating a file header to trigger zuul.
Updated the sphinx config file to correct the issue.
The sphinx behavioural change is mentioned here:
https://github.com/sphinx-doc/sphinx/issues/10062https://github.com/sphinx-doc/sphinx/issues/10474
Closes-Bug: #1976377
Signed-off-by: Al Bailey <al.bailey@windriver.com>
Change-Id: I4d489a7bb8f579c894081bedba8ac3638a7eae1d
43ec9b8119