Bump ansys/actions from 5 to 6

Bumps [ansys/actions](https://github.com/ansys/actions) from 5 to 6.
- [Release notes](https://github.com/ansys/actions/releases)
- [Commits](ansys/actions@v5...v6)

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

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

.github/workflows/ci_cd.yml

@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: PyAnsys code style checks
-        uses: ansys/actions/code-style@v5
+        uses: ansys/actions/code-style@v6
         with:
           python-version: ${{ env.MAIN_PYTHON_VERSION }}
           use-python-cache: false
@@ -47,7 +47,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: PyAnsys documentation style checks
-        uses: ansys/actions/doc-style@v5
+        uses: ansys/actions/doc-style@v6
         with:
           token: ${{ secrets.GITHUB_TOKEN }}