Roll Fuchsia Linux SDK from 3lfit... to 6Dz_3...

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
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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/+doc/master/autoroll/README.md

Author: skia-flutter-autoroll

DEPS

@@ -541,7 +541,7 @@ deps = {
      'packages': [
        {
         'package': 'fuchsia/sdk/core/linux-amd64',
-        'version': '3lfitkpybVNADXso-bvWi58--AwwVBonuFzD6Nr147UC'
+        'version': '6Dz_3Sg98IrY47rtvZ3f9sd9Rq0k6MTU5bAEAEHWn4sC'
        }
      ],
      'condition': 'host_os == "linux"',

ci/licenses_golden/licenses_fuchsia

@@ -1,4 +1,4 @@
-Signature: 214e648a06a82df687b4a2176ba8b6c6
+Signature: a384793ebe71e1058402432bcc7536c1
 
 UNUSED LICENSES:
 
@@ -1485,7 +1485,6 @@ FILE: ../../../fuchsia/sdk/linux/pkg/fdio/include/lib/fdio/fd.h
 FILE: ../../../fuchsia/sdk/linux/pkg/fdio/meta.json
 FILE: ../../../fuchsia/sdk/linux/pkg/fidl-async/meta.json
 FILE: ../../../fuchsia/sdk/linux/pkg/fidl/meta.json
-FILE: ../../../fuchsia/sdk/linux/pkg/fidl_base/include/lib/fidl/envelope_frames.h
 FILE: ../../../fuchsia/sdk/linux/pkg/fidl_base/include/lib/fidl/internal_callable_traits.h
 FILE: ../../../fuchsia/sdk/linux/pkg/fidl_base/include/lib/fidl/txn_header.h
 FILE: ../../../fuchsia/sdk/linux/pkg/fidl_base/include/lib/fidl/visitor.h