Bump ansys-sphinx-theme from 1.6.1 to 1.6.3 (#683)

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

Author: dependabot[bot]

pyproject.toml

@@ -44,7 +44,7 @@ tests = [
 ]
 
 doc = [
-    "ansys-sphinx-theme==1.6.1",
+    "ansys-sphinx-theme==1.6.3",
     "autodoc_pydantic==2.1.0",
     "jupyter_sphinx==0.5.3",
     "nbsphinx==0.9.7",