ci: pin CMake on macOS weak-node-api tests (#375)

The weak-node-api-tests job invokes cmake directly on macos-latest with
no version pin, so it picks up the runner's default CMake 4.2.x instead
of the project's pinned 4.1.2 — the same drift that broke the unit-tests
job (#374). This job runs on pushes to main, so leaving it unpinned would
turn main red. Install the pinned version via jwlawson/actions-setup-cmake,
gated to macOS runners, matching the unit-tests and test-macos jobs.


Claude-Session: https://claude.ai/code/session_01UCN2h9xbyn4yhxfVZyMzAm

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: kraenhansen

.github/workflows/check.yml

@@ -125,6 +125,12 @@ jobs:
         uses: hendrikmuhs/ccache-action@v1.2
         with:
           key: ${{ github.job }}-${{ runner.os }}
+      # macOS runners ship a newer CMake than the project supports; pin it to match the version used elsewhere in CI
+      - name: Install compatible CMake version
+        if: runner.os == 'macOS'
+        uses: jwlawson/actions-setup-cmake@v2
+        with:
+          cmake-version: ${{ env.CMAKE_VERSION }}
       - run: npm ci
       - run: npm run build
       - name: Prepare weak-node-api