Roll fuchsia/sdk/core/mac-amd64 from 57R6s... to _ncZC... (#11786)

Roll fuchsia/sdk/core/mac-amd64 from 57R6s... to _ncZC...

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
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is aware of the problem.

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

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https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

DEPS

@@ -539,7 +539,7 @@ deps = {
      'packages': [
        {
         'package': 'fuchsia/sdk/core/mac-amd64',
-        'version': '57R6sWtSxN1S5LoIvlybRS8IK5dq3Qqs486uzOtVx-oC'
+        'version': '_ncZCEGTg-dHGYT9BxcvDCi4Q8gC2SkSYXqa_CwUY5UC'
        }
      ],
      'condition': 'host_os == "mac"',