feat: Support latest versions of the plus plugins. (#148)

**Requirements**

- [x] I have added test coverage for new or changed functionality
- [x] I have followed the repository's [pull request submission
guidelines](../blob/main/CONTRIBUTING.md#submitting-pull-requests)
- [x] I have validated my changes against all supported platform
versions

**Related issues**

It's not currently possible to upgrade the Flutter plus plugins in
projects that require the LaunchDarkly SDK until the LaunchDarkly SDK
upgrades its dependencies.

**Describe the solution you've provided**

Upgraded the dependencies.

**Describe alternatives you've considered**

N/A

**Additional context**

N/A

packages/flutter_client_sdk/lib/src/flutter_state_detector.dart

@@ -23,7 +23,7 @@ final class FlutterStateDetector implements StateDetector {
   Stream<NetworkState> get networkState => _networkStateController.stream;
 
   late final LDAppLifecycleListener _lifecycleListener;
-  late final StreamSubscription<ConnectivityResult> _connectivitySubscription;
+  late final StreamSubscription<dynamic> _connectivitySubscription;
 
   FlutterStateDetector() {
     final initialState = SchedulerBinding.instance.lifecycleState;
@@ -41,8 +41,15 @@ final class FlutterStateDetector implements StateDetector {
         Connectivity().onConnectivityChanged.listen(_setConnectivity);
   }
 
-  void _setConnectivity(ConnectivityResult connectivityResult) {
-    if (connectivityResult == ConnectivityResult.none) {
+  void _setConnectivity(dynamic connectivityResult) {
+    // TODO: This is a temporary fix to handle the breaking change in
+    // connectivity_plus v6
+    final resultsList =
+        connectivityResult is List ? connectivityResult : [connectivityResult];
+    final isUnavailable =
+        resultsList.any((result) => result == ConnectivityResult.none);
+
+    if (isUnavailable) {
       _networkStateController.sink.add(NetworkState.unavailable);
     } else {
       _networkStateController.sink.add(NetworkState.available);

packages/flutter_client_sdk/pubspec.yaml

@@ -12,11 +12,11 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  package_info_plus: ">=4.2.0 <6.0.0"
-  device_info_plus: ^9.1.1
+  package_info_plus: ">=4.2.0 <7.0.0"
+  device_info_plus: ">=9.1.1 <11.0.0"
   launchdarkly_common_client: 1.2.0
   shared_preferences: ^2.2.2
-  connectivity_plus: ^5.0.2
+  connectivity_plus: ">=5.0.2 <7.0.0"
 
 dev_dependencies:
   flutter_test: