chore(deps): update dependency macos to v15 (#21)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -82,7 +82,7 @@ jobs:
 
   merge-test-reports:
     needs: [test-apple-platforms]
-    runs-on: macos-13
+    runs-on: macos-15
     steps:
       - name: Download artifacts
         uses: actions/download-artifact@v6