Roll Fuchsia Mac SDK from 4MMwM... to bigQ3... (#19475)

diff --git a/DEPS b/DEPS
index a9ed567..77360d1 100644
--- a/DEPS
+++ b/DEPS
@@ -520,7 +520,7 @@
      'packages': [
        {
         'package': 'fuchsia/sdk/core/mac-amd64',
-        'version': '4MMwMfLQwGS9BH20j9OyZbbuNwn-4YHebANtlxJAYxoC'
+        'version': 'bigQ3gMoWBSFjQMZf9tIjjZU73JkYOot-KfGbi1JW28C'
        }
      ],
      'condition': 'host_os == "mac"',