Bump SimenB/github-actions-cpu-cores from 1 to 2

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](SimenB/github-actions-cpu-cores@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>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -38,7 +38,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Get number of CPU cores
-        uses: SimenB/github-actions-cpu-cores@v1
+        uses: SimenB/github-actions-cpu-cores@v2
         id: cpu-cores
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1