Samples maintenance (#435)

add_to_app/flutter_module_using_plugin/pubspec.lock

@@ -79,6 +79,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.12"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.6.1+1"
   matcher:
     dependency: transitive
     description:
@@ -93,6 +100,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.8"
+  nested:
+    dependency: transitive
+    description:
+      name: nested
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.4"
   path:
     dependency: transitive
     description:
@@ -120,7 +134,7 @@ packages:
       name: provider
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.2.0"
+    version: "4.1.0"
   quiver:
     dependency: transitive
     description:
@@ -188,14 +202,14 @@ packages:
       name: url_launcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "5.4.2"
+    version: "5.4.5"
   url_launcher_macos:
     dependency: transitive
     description:
       name: url_launcher_macos
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.0.1+4"
+    version: "0.0.1+5"
   url_launcher_platform_interface:
     dependency: transitive
     description:
@@ -209,7 +223,7 @@ packages:
       name: url_launcher_web
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.1.1+1"
+    version: "0.1.1+4"
   vector_math:
     dependency: transitive
     description:
@@ -225,5 +239,5 @@ packages:
     source: hosted
     version: "3.6.1"
 sdks:
-  dart: ">=2.6.0 <3.0.0"
-  flutter: ">=1.12.8 <2.0.0"
+  dart: ">=2.7.0 <3.0.0"
+  flutter: ">=1.17.0 <2.0.0"

add_to_app/flutter_module_using_plugin/pubspec.yaml

@@ -9,7 +9,7 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  provider: ^3.1.0
+  provider: ^4.1.0
   url_launcher: ^5.2.5
 
 dev_dependencies: