Roll Fuchsia Mac SDK from a9NpYJbjhDRX9P9u4... to ao8fSjW8HrZSsu3yq...

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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DEPS

@@ -816,7 +816,7 @@ deps = {
      'packages': [
        {
         'package': 'fuchsia/sdk/core/mac-amd64',
-        'version': 'a9NpYJbjhDRX9P9u4EU-v-v3y5U7jG4VvhvYLzR8a9QC'
+        'version': 'ao8fSjW8HrZSsu3yqNlOwdrAQtSpWxtrNEs7oihOfBoC'
        }
      ],
      'condition': 'host_os == "mac" and not download_fuchsia_sdk',