Roll fuchsia/sdk/core/mac-amd64 from x1rDE... to 9MM-e... (#13383)

Roll fuchsia/sdk/core/mac-amd64 from x1rDE... to 9MM-e...

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/fuchsia-mac-sdk-flutter-engine
Please CC  on the revert to ensure that a human
is aware of the problem.

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https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

DEPS

@@ -542,7 +542,7 @@ deps = {
      'packages': [
        {
         'package': 'fuchsia/sdk/core/mac-amd64',
-        'version': 'x1rDEZpFliEn7EPhCYl5hoV04rskH1Z-QxqQfDIzVXQC'
+        'version': '9MM-er0y7Gt3DIyJ2W4Humo_SvJ_Jl1Ctc-MDmeujQgC'
        }
      ],
      'condition': 'host_os == "mac"',