chore: New version

Author: Victor Ohashi

example/pubspec.lock

@@ -87,7 +87,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "0.2.7"
+    version: "0.3.0"
   sky_engine:
     dependency: transitive
     description: flutter

pubspec.yaml

@@ -1,11 +1,11 @@
 name: popover
 description: A popover is a transient view that appears above other content onscreen when you tap a control or in an area.
-version: 0.2.7
+version: 0.3.0
 homepage: https://github.com/minikin/popover
 
 environment:
-  sdk: ">=2.18.0 <3.0.0"
-  flutter: ">=3.3.0"
+  sdk: '>=2.18.0 <3.0.0'
+  flutter: '>=3.3.0'
 
 dependencies:
   flutter: