build(deps): bump ansys-sphinx-theme from 1.1.3 to 1.1.6 in the dev-dependencies group (#5808)

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

Author: dependabot[bot]

pyproject.toml

@@ -40,7 +40,7 @@ tests = [
     "gitpython==3.1.43",
 ]
 doc = [
-    "ansys-sphinx-theme==1.1.3",
+    "ansys-sphinx-theme==1.1.6",
     "numpydoc==1.8.0",
     "sphinx==8.1.3",
     "sphinx-autoapi==3.3.2",