Build(deps): Bump ansys/actions from 4 to 6

Bumps [ansys/actions](https://github.com/ansys/actions) from 4 to 6.
- [Release notes](https://github.com/ansys/actions/releases)
- [Commits](ansys/actions@v4...v6)

---
updated-dependencies:
- dependency-name: ansys/actions
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci_cd.yml

@@ -29,7 +29,7 @@ jobs:
     name: Documentation style
     runs-on: ubuntu-latest
     steps:
-      - uses: ansys/actions/doc-style@v4
+      - uses: ansys/actions/doc-style@v6
         with:
           token: ${{ secrets.GITHUB_TOKEN }}