chore: increased the SDK version to get rid of Future export warning

example/pubspec.yaml

@@ -10,7 +10,7 @@ description: A new Flutter project.
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.0.0-dev.68.0 <3.0.0"
+  sdk: ">=2.1.0 <3.0.0"
 
 dependencies:
   flutter:

example/test_driver/app_test.dart

@@ -11,8 +11,7 @@ Future<void> main() {
     ..features = [Glob(r"test_driver/features/**.feature")]
     ..reporters = [
       ProgressReporter(),
-      TestRunSummaryReporter(),
+      TestRunSummaryReporter()
-      StdoutReporter(MessageLevel.warning)
     ] // you can include the "StdoutReporter()" without the message level parameter for verbose log information
     ..hooks = [HookExample()]
     ..stepDefinitions = [TapButtonNTimesStep(), GivenIPickAColour()]

pubspec.lock

@@ -7,7 +7,7 @@ packages:
       name: analyzer
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.32.4"
+    version: "0.33.0"
   args:
     dependency: transitive
     description:
@@ -63,7 +63,7 @@ packages:
       name: csslib
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.14.5"
+    version: "0.14.6"
   file:
     dependency: transitive
     description:
@@ -92,7 +92,12 @@ packages:
       name: front_end
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.1.4"
+    version: "0.1.6"
+  fuchsia_remote_debug_protocol:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   glob:
     dependency: "direct main"
     description:
@@ -113,7 +118,7 @@ packages:
       name: http
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.11.3+17"
+    version: "0.12.0"
   http_multi_server:
     dependency: transitive
     description:
@@ -162,7 +167,7 @@ packages:
       name: kernel
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.4"
+    version: "0.3.6"
   logging:
     dependency: transitive
     description:
@@ -218,7 +223,7 @@ packages:
       name: package_resolver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.6"
   path:
     dependency: "direct main"
     description:
@@ -226,6 +231,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.6.2"
+  platform:
+    dependency: transitive
+    description:
+      name: platform
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.2.0"
   plugin:
     dependency: transitive
     description:
@@ -240,6 +252,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.6"
+  process:
+    dependency: transitive
+    description:
+      name: process
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.8"
   pub_semver:
     dependency: transitive
     description:
@@ -253,7 +272,7 @@ packages:
       name: quiver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.0+1"
+    version: "2.0.1"
   shelf:
     dependency: transitive
     description:
@@ -300,7 +319,7 @@ packages:
       name: source_maps
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.10.7"
+    version: "0.10.8"
   source_span:
     dependency: transitive
     description:
@@ -342,7 +361,14 @@ packages:
       name: test
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0"
+    version: "1.3.4"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.1"
   typed_data:
     dependency: transitive
     description:
@@ -393,4 +419,4 @@ packages:
     source: hosted
     version: "2.1.15"
 sdks:
-  dart: ">=2.0.0-dev.68.0 <3.0.0"
+  dart: ">=2.0.0 <3.0.0"

pubspec.yaml

@@ -5,7 +5,7 @@ author: Jon Samwell <jonsamwell@gmail.com>
 homepage: https://github.com/jonsamwell/flutter_gherkin
 
 environment:
-  sdk: ">=2.0.0-dev.68.0 <3.0.0"
+  sdk: ">=2.1.0 <3.0.0"
 
 dependencies:
   flutter: