build(deps): bump sphinx from 8.1.3 to 8.2.3 in /requirements (#327)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Camille Latapie <78221213+clatapie@users.noreply.github.com>

Author: dependabot[bot]

requirements/requirements_doc.txt

@@ -8,7 +8,7 @@ pythreejs==2.4.2
 pyvista[jupyter]==0.46.3
 
 # Documentation dependencies
-Sphinx==8.1.3
+Sphinx==8.2.3
 numpydoc==1.8.0
 ansys-sphinx-theme==1.2.6
 sphinx-copybutton==0.5.2