Updated dependencies

pubspec.lock

@@ -42,7 +42,7 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.1"
+    version: "2.4.2"
   auto_size_text:
     dependency: "direct main"
     description:
@@ -210,7 +210,7 @@ packages:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.14.12"
+    version: "1.14.13"
   connectivity:
     dependency: "direct main"
     description:
@@ -252,7 +252,7 @@ packages:
       name: crypto
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.4"
+    version: "2.1.5"
   csslib:
     dependency: transitive
     description:
@@ -330,6 +330,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.2"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
   ffi:
     dependency: transitive
     description:
@@ -505,7 +512,7 @@ packages:
       name: image
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.12"
+    version: "2.1.18"
   intl:
     dependency: "direct main"
     description:
@@ -561,7 +568,7 @@ packages:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.6"
+    version: "0.12.8"
   meta:
     dependency: transitive
     description:
@@ -589,7 +596,7 @@ packages:
       name: mobx_codegen
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0+1"
+    version: "1.1.0+2"
   node_interop:
     dependency: transitive
     description:
@@ -631,7 +638,7 @@ packages:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
+    version: "1.7.0"
   path_drawing:
     dependency: transitive
     description:
@@ -694,7 +701,7 @@ packages:
       name: petitparser
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "3.0.4"
   platform:
     dependency: transitive
     description:
@@ -708,7 +715,7 @@ packages:
       name: plugin_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.2"
+    version: "1.0.3"
   pointycastle:
     dependency: transitive
     description:
@@ -874,7 +881,7 @@ packages:
       name: stack_trace
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.3"
+    version: "1.9.5"
   stream_channel:
     dependency: transitive
     description:
@@ -909,7 +916,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.15"
+    version: "0.2.17"
   time:
     dependency: transitive
     description:
@@ -930,7 +937,7 @@ packages:
       name: typed_data
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.6"
+    version: "1.2.0"
   url_launcher:
     dependency: "direct main"
     description:
@@ -1021,7 +1028,7 @@ packages:
       name: xml
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.6.1"
+    version: "4.5.1"
   yaml:
     dependency: "direct main"
     description:
@@ -1030,5 +1037,5 @@ packages:
     source: hosted
     version: "2.2.1"
 sdks:
-  dart: ">=2.7.0 <3.0.0"
+  dart: ">=2.9.0-14.0.dev <3.0.0"
   flutter: ">=1.12.13+hotfix.5 <2.0.0"