Build: Switch CI/macOS job from macos-12 to macos-13

Author: Krinkle

.github/workflows/CI.yaml

@@ -39,12 +39,8 @@ jobs:
             node: 18.x
             script: npm run test-nolint
 
-          # use macos-12 instead of macos-latest
-          # as proxy for Intel instead of ARM
-          # because the older Puppeteer/Chrome for Node 10 compat
-          # didn't support ARM yet.
           - name: "macOS: Node 18"
-            os: macos-12
+            os: macos-13
             node: 18.x
             script: npm run test-nolint