update photo_manager version

pubspec.lock

       name: async
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.0.8"
+    version: "2.2.0"
   boolean_selector:
     dependency: transitive
     description:
       name: matcher
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.12.3+1"
+    version: "0.12.5"
   meta:
     dependency: transitive
     description:
   photo_manager:
     dependency: "direct main"
     description:
-      name: photo_manager
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "0.3.3"
+      path: "../flutter_photo_manager"
+      relative: true
+    source: path
+    version: "0.3.4"
   quiver:
     dependency: transitive
     description:
       name: quiver
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.0.1"
+    version: "2.0.3"
   sky_engine:
     dependency: transitive
     description: flutter
       name: stream_channel
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.6.8"
+    version: "2.0.0"
   string_scanner:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.2.2"
+    version: "0.2.5"
   typed_data:
     dependency: transitive
     description:
     source: hosted
     version: "2.0.8"
 sdks:
-  dart: ">=2.1.1-dev.0.0 <3.0.0"
+  dart: ">=2.2.0 <3.0.0"

pubspec.yaml

 name: photo
-description: image picker, multi picker support video / icloud asset ,use flutter as ui, if you want to build custom ui,you just use photo_manager.
-version: 0.3.3
+description: image picker, multi picker support video/icloud asset, use flutter as ui, if you want to build custom ui, you just use photo_manager.
+version: 0.3.4
 author: caijinglong<cjl_spy@163.com>
 homepage: https://github.com/CaiJingLong/flutter_photo
 
   flutter:
     sdk: flutter
 
-  photo_manager: ^0.3.3
+  photo_manager: ^0.3.4
   # photo_manager:
   #   git:
   #     url: https://github.com/CaiJingLong/flutter_photo_manager.git