Updated dart analyzer and fixed new for new lint rules.

Author: jeroen1602

lib/web_bluetooth_logger.dart

@@ -35,7 +35,7 @@ Logger get webBluetoothLogger {
 ///
 void setWebBluetoothLogger(final Logger logger) {
   _webLogger = logger;
-  Future.sync(() async => await _subscription?.cancel());
+  unawaited(_subscription?.cancel());
   _subscription = null;
 }
 
@@ -46,7 +46,7 @@ void setWebBluetoothLogger(final Logger logger) {
 ///
 void initWebBluetoothLogger() {
   final logger = Logger("flutter_web_bluetooth");
-  Future.sync(() async => await _subscription?.cancel());
+  unawaited(_subscription?.cancel());
   _subscription = logger.onRecord.listen((final event) {
     // ignore: avoid_print
     print("${event.loggerName}: ${event.time}: ${event.message}");

pubspec.lock

@@ -157,10 +157,10 @@ packages:
     dependency: "direct dev"
     description:
       name: lints
-      sha256: c35bb79562d980e9a453fc715854e1ed39e24e7d0297a880ef54e17f9874a9d7
+      sha256: a5e2b223cb7c9c8efdc663ef484fdd95bb243bff242ef5b13e26883547fce9a0
       url: "https://pub.dev"
     source: hosted
-    version: "5.1.1"
+    version: "6.0.0"
   logging:
     dependency: "direct main"
     description:
@@ -418,4 +418,4 @@ packages:
     source: hosted
     version: "3.1.3"
 sdks:
-  dart: ">=3.7.0-0 <4.0.0"
+  dart: ">=3.8.0-0 <4.0.0"