Bump SimenB/github-actions-cpu-cores from 1 to 2 (#19685)

Bumps [SimenB/github-actions-cpu-cores](https://github.com/simenb/github-actions-cpu-cores) from 1 to 2.
- [Release notes](https://github.com/simenb/github-actions-cpu-cores/releases)
- [Commits](https://github.com/simenb/github-actions-cpu-cores/compare/v1...v2)

---
updated-dependencies:
- dependency-name: SimenB/github-actions-cpu-cores
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/linux.yml

@@ -144,7 +144,7 @@ jobs:
           cmake --version || exit 1
 
       - name: Get number of CPU cores
-        uses: SimenB/github-actions-cpu-cores@v1
+        uses: SimenB/github-actions-cpu-cores@v2
         id: cpu-cores
 
       - name: CMake configure