This commit resolves the Zuul/tox failures encountered when running
sphinx to generate documentation, which in turn prevents merging changes
that are otherwise fine:
```
docs: 350 W commands[1]> sphinx-build -a -E -W -d doc/build/doctrees \
-b html doc/source doc/build/html [tox/tox_env/api.py:427]
Running Sphinx v6.2.1
Warning, treated as error:
Invalid configuration value found: 'language = None'. Update your \
configuration to a valid language code. Falling back to 'en' \
(English).
docs: 723 C exit 2 (0.37 seconds) \
/home/zuul/src/opendev.org/starlingx/kernel> \
sphinx-build -a -E -W -d doc/build/doctrees -b html doc/source \
doc/build/html pid=1720 [tox/execute/api.py:279]
docs: FAIL code 2 (0.44=setup[0.07]+cmd[0.00,0.37] seconds)
evaluation failed :( (0.54 seconds)
```
This issue was fixed for another StarlingX repository (tools) with
https://review.opendev.org/c/starlingx/tools/+/893165
from which this commit is inspired.
The issue is related to a Sphinx update that requires the language
parameter to be specified:
https://github.com/sphinx-doc/sphinx/issues/10062https://github.com/sphinx-doc/sphinx/issues/10474
Partial-Bug: 1976377
Partial-Bug: 2033431
Change-Id: Ic20fec5145b1a4ddb12051f018614562a4773b95
Signed-off-by: M. Vefa Bicakci <vefa.bicakci@windriver.com>
5a1dfa8274