static analysis: exclude generated file

analysis_options.yaml

@@ -2,6 +2,7 @@ include: package:pedantic/analysis_options.yaml
 
 analyzer:
   exclude:
+    - lib/flutter_version.dart
     - lib/generated_plugin_registrant.dart
 
 #  strong-mode:

lib/flutter_version.dart

@@ -1,10 +1,10 @@
 // run `scripts/update_flutter_version.sh` to update with the content of `flutter --version --machine`
 const Map<String, String> version = {
-  'channel': 'unknown',
-  'dartSdkVersion': 'unknown',
-  'engineRevision': 'unknown',
-  'frameworkCommitDate': 'unknown',
-  'frameworkRevision': 'unknown',
-  'frameworkVersion': 'unknown',
-  'repositoryUrl': 'unknown',
+  "channel": "unknown",
+  "dartSdkVersion": "unknown",
+  "engineRevision": "unknown",
+  "frameworkCommitDate": "unknown",
+  "frameworkRevision": "unknown",
+  "frameworkVersion": "unknown",
+  "repositoryUrl": "unknown",
 };