[CI] Update macos resource class. NFC (#25955)

See
https://circleci.com/changelog/deprecation-of-mac-m1-and-m2-resource-classes/

Author: sbc100

.circleci/config.yml

@@ -28,7 +28,7 @@ executors:
       EMSDK_NOTTY: "1"
     macos:
       xcode: "16.2.0"
-    resource_class: macos.m1.medium.gen1
+    resource_class: m4pro.medium
 
 commands:
   download-chrome: