Roll Fuchsia Linux SDK from 5WGhpr75y_pb6u2OO... to unavXf_l4lhu23MGg... (flutter#53739)

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,rmistry@google.com,zra@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

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

Author: skia-flutter-autoroll

DEPS

@@ -969,7 +969,7 @@ deps = {
      'packages': [
        {
         'package': 'fuchsia/sdk/core/linux-amd64',
-        'version': '5WGhpr75y_pb6u2OOYVCKJV3aZNpyyu2pyP9K7U2fOwC'
+        'version': 'unavXf_l4lhu23MGglxDwupxPwyrgQVVE08bwyPMBkgC'
        }
      ],
      'condition': 'download_fuchsia_deps and not download_fuchsia_sdk',

ci/licenses_golden/licenses_fuchsia

@@ -1,4 +1,4 @@
-Signature: 2cf0f0685713e2a74e6cb208521c6e7e
+Signature: d1d3cb5a31ba9ce41f999c152bc102d9
 
 ====================================================================================================
 LIBRARY: fuchsia_sdk