Bump ansys-sphinx-theme from 1.2.1 to 1.6.3 in the doc-dependencies group (#209)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pyproject.toml

@@ -36,7 +36,7 @@ tests = [
     "requests==2.32.5",
 ]
 doc = [
-    "ansys-sphinx-theme==1.2.1",
+    "ansys-sphinx-theme==1.6.3",
     "numpydoc==1.9.0",
     "Sphinx==8.1.3",
     "sphinx-autoapi==3.6.1",