Merge branch '20-update-flutter-dart-framework' into 'master'

Resolve "Update flutter/dart framework"

Closes #20

See merge request android/hangman!17

android/gradle.properties

@@ -2,5 +2,5 @@ org.gradle.jvmargs=-Xmx1536M
 android.useAndroidX=true
 android.enableJetifier=true
 android.enableR8=true
-app.versionName=1.1.4
-app.versionCode=4
+app.versionName=1.1.5
+app.versionCode=5

pubspec.lock

@@ -7,21 +7,21 @@ packages:
       name: assets_audio_player
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.14"
+    version: "2.0.15"
   assets_audio_player_web:
     dependency: transitive
     description:
       name: assets_audio_player_web
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.14"
+    version: "2.0.15"
   async:
     dependency: transitive
     description:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.5.0"
+    version: "2.6.1"
   boolean_selector:
     dependency: transitive
     description:
@@ -84,7 +84,7 @@ packages:
       name: cupertino_icons
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.2"
+    version: "1.0.3"
   diacritic:
     dependency: "direct main"
     description:
@@ -105,14 +105,14 @@ packages:
       name: ffi
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.0"
+    version: "1.1.0"
   file:
     dependency: transitive
     description:
       name: file
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "6.1.0"
+    version: "6.1.1"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -204,7 +204,7 @@ packages:
       name: path_provider
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.27"
+    version: "1.6.28"
   path_provider_linux:
     dependency: transitive
     description:
@@ -260,7 +260,7 @@ packages:
       name: process
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.1.0"
+    version: "4.2.1"
   provider:
     dependency: "direct main"
     description:
@@ -328,7 +328,7 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0"
+    version: "1.8.1"
   stack_trace:
     dependency: transitive
     description:
@@ -363,7 +363,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.19"
+    version: "0.3.0"
   typed_data:
     dependency: transitive
     description:
@@ -391,7 +391,7 @@ packages:
       name: win32
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.2"
+    version: "2.1.1"
   xdg_directories:
     dependency: transitive
     description:
@@ -400,5 +400,5 @@ packages:
     source: hosted
     version: "0.1.2"
 sdks:
-  dart: ">=2.12.0 <3.0.0"
+  dart: ">=2.13.0 <3.0.0"
   flutter: ">=1.20.0"