Fixing missing meta dependency (flutter#136)

Author: domesticmouse

packages/flutter_markdown/pubspec.lock

@@ -8,6 +8,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.36.4"
+  archive:
+    dependency: transitive
+    description:
+      name: archive
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.10"
   args:
     dependency: transitive
     description:
@@ -116,6 +123,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "3.1.3"
+  image:
+    dependency: transitive
+    description:
+      name: image
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.4"
   io:
     dependency: transitive
     description:
@@ -159,7 +173,7 @@ packages:
     source: hosted
     version: "0.12.5"
   meta:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: meta
       url: "https://pub.dartlang.org"
@@ -235,6 +249,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.0+1"
+  petitparser:
+    dependency: transitive
+    description:
+      name: petitparser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.4.0"
   pool:
     dependency: transitive
     description:
@@ -394,6 +415,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
+  xml:
+    dependency: transitive
+    description:
+      name: xml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.5.0"
   yaml:
     dependency: transitive
     description:

packages/flutter_markdown/pubspec.yaml

@@ -8,6 +8,7 @@ dependencies:
   flutter:
     sdk: flutter
   markdown: ^2.0.0
+  meta: ^1.1.7
 
 dev_dependencies:
   flutter_test: