[client] Update dependency sphinx to v7.3.7 (#15)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

docs/requirements.txt

@@ -1,4 +1,4 @@
 autoapi==2.0.1
-sphinx==7.2.6
+sphinx==7.3.7
 sphinx-autodoc-typehints==2.1.0
 sphinx_rtd_theme==2.0.0