Roll Fuchsia Linux SDK from dJ0gh-z1KVnSzvfjW... to oq6Ztlu1b1mgdDSPH... (flutter/engine#56728)

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

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DEPS

@@ -875,7 +875,7 @@ deps = {
      'packages': [
        {
         'package': 'fuchsia/sdk/core/linux-amd64',
-        'version': 'dJ0gh-z1KVnSzvfjWj4xwwKr4dgSz1SnO7CjuQUqmzUC'
+        'version': 'oq6Ztlu1b1mgdDSPHcGPu9oR19woqUEXinAJnHoE6scC'
        }
      ],
      'condition': 'download_fuchsia_deps and not download_fuchsia_sdk',

engine/src/flutter/ci/licenses_golden/licenses_fuchsia

@@ -1,4 +1,4 @@
-Signature: b1a8a90cec9283ce1958a3616d2c7d6f
+Signature: d1e65dfc4d2a50b85d70c43b61f28491
 
 ====================================================================================================
 LIBRARY: fuchsia_sdk