sphinx-tabs is not compatible with Sphinx 9

[xqt]

Describe the bug

CONTEXT
Running Sphinx 9 with sphinx-tabs extension several warnings occurs. In result the documentation is broken for the current master release but it should be created like in stable release

BUG
Here are some warning messages I ran into...

13:13:43 WARNING: /src/.tox/doc/lib/python3.13/site-packages/sphinx_tabs/tabs.py:191: RemovedInSphinx11Warning: 'sphinx.environment.BuildEnvironment.app' is deprecated. Check CHANGES for Sphinx API modifications.
13:13:43   if self.env.app.builder.name not in get_compatible_builders(self.env.app):
13:13:43 
13:13:43 WARNING: /src/.tox/doc/lib/python3.13/site-packages/sphinx_tabs/tabs.py:107: RemovedInSphinx11Warning: 'sphinx.environment.BuildEnvironment.app' is deprecated. Check CHANGES for Sphinx API modifications.
13:13:43   if self.env.app.builder.name in get_compatible_builders(self.env.app):
13:13:43

Reproduce the bug

.

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