build: bump ansys-sphinx-theme from 1.2.2 to 1.2.4

Bumps [ansys-sphinx-theme](https://github.com/ansys/ansys-sphinx-theme) from 1.2.2 to 1.2.4.
- [Release notes](https://github.com/ansys/ansys-sphinx-theme/releases)
- [Commits](ansys/ansys-sphinx-theme@v1.2.2...v1.2.4)

---
updated-dependencies:
- dependency-name: ansys-sphinx-theme
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

pyproject.toml

@@ -41,7 +41,7 @@ tests = [
 
 doc = [
     "Sphinx==8.1.3",
-    "ansys-sphinx-theme==1.2.2",
+    "ansys-sphinx-theme==1.2.4",
     "numpydoc==1.8.0",
     "sphinx-autodoc-typehints==2.5.0",
     "sphinx-copybutton==0.5.2",