[flutter_tools] disable cache in devices test (#54389)

packages/flutter_tools/test/commands.shard/permeable/devices_test.dart

@@ -6,6 +6,7 @@ import 'dart:convert';
 
 import 'package:file/file.dart';
 import 'package:args/command_runner.dart';
+import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/device.dart';
 import 'package:flutter_tools/src/web/chrome.dart';
 import 'package:flutter_tools/src/commands/devices.dart';
@@ -30,6 +31,7 @@ void main() {
     });
 
     setUpAll(() {
+      Cache.disableLocking();
       configDir ??= globals.fs.systemTempDirectory.createTempSync(
         'flutter_config_dir_test.',
       );
@@ -90,4 +92,4 @@ class _DisabledChromeLauncher implements ChromeLauncher {
   @override
   Future<Chrome> launch(String url, {bool headless = false, int debugPort, bool skipCheck = false, Directory cacheDir})
     => Future<Chrome>.error('Chrome disabled');
-}
\ No newline at end of file
+}