check for fuchsia (#50822)

.cirrus.yml

@@ -100,6 +100,12 @@ task:
       script:
         - dart --enable-asserts ./dev/bots/analyze.dart
 
+    - name: fuchsia_precache-linux # linux-only
+      only_if: "changesInclude('.cirrus.yml', 'bin/internal/engine.version')"
+      script:
+        - flutter precache --fuchsia --no-android --no-ios
+        - flutter precache --flutter_runner --no-android --no-ios
+
     - name: framework_tests-widgets-linux
       only_if: "changesInclude('.cirrus.yml', 'dev/**', 'packages/flutter/**', 'packages/flutter_test/**', 'packages/flutter_tools/lib/src/test/**', 'bin/internal/**') || $CIRRUS_PR == ''"
       environment: