ci: use macos-15 (#1829)

.github/workflows/ci.yml

@@ -38,7 +38,7 @@ jobs:
     strategy:
       matrix:
         node-version: [20.x, 22.x, 24.x]
-        os: [ubuntu-latest, windows-latest, macos-latest]
+        os: [ubuntu-latest, windows-latest, macos-15]
 
     steps:
       - uses: actions/checkout@v4
@@ -81,6 +81,7 @@ jobs:
 
       - uses: github/codeql-action/analyze@v3
 
+      # v4.6.0
       - uses: codecov/codecov-action@b9fd7d16f6d7d1b5d2bec1a2887e65ceed900238
         if: success()
         with: