Describe the bug
Warning "The SDK configured in dart.flutterSdkPath is not a valid SDK folder." appears when SDK configured via symlink: fvm as example.
To Reproduce
Steps to reproduce the behavior:
- Set dart.flutterSdkPath to ".fvm/flutter_sdk"
Expected behavior
Should not appear
Screenshots

Please complete the following information:
- Operating System and version: macOS Ventura 13.3.1 (a)
- VS Code version: 1.79.2
- Dart extension version: v3.68.0
- Dart/Flutter SDK version: 3.10.5