MAINT: Bump ansys-sphinx-theme from 0.9.8 to 0.9.9 (#520)

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

Author: dependabot[bot]

pyproject.toml

@@ -68,7 +68,7 @@ tests = [
     "vtk==9.2.6",
 ]
 doc = [
-    "ansys-sphinx-theme==0.9.8",
+    "ansys-sphinx-theme==0.9.9",
     "docker==6.1.1",
     "ipyvtklink==0.2.3",
     "jupyter_sphinx==0.4.0",