Roll Fuchsia Linux SDK from eRSQn0XKuI7byK2i_... to 4fmJ_PQoaE2L9vdx0... (flutter/engine#43510)

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

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

DEPS

@@ -899,7 +899,7 @@ deps = {
      'packages': [
        {
         'package': 'fuchsia/sdk/core/linux-amd64',
-        'version': 'eRSQn0XKuI7byK2i_9p_Z4HzdJLKyHdrlMkMr95GfTkC'
+        'version': '4fmJ_PQoaE2L9vdx0eX2Tm7JhhRIeEDiROwucvp-MSMC'
        }
      ],
      'condition': 'host_os == "linux" and not download_fuchsia_sdk',