Bump to v0.9.0 (#205)

## Fixes / Closes (optional)
<!-- List any issues or pull requests that this PR fixes or closes. Use
the format: "Fixes #123" or "Closes #456". -->

- Closes #156.

## Description
<!-- Provide a clear and concise description of what this PR does.
Explain the problem it solves and the approach you've taken. -->

Also added the [topics](https://dart.dev/tools/pub/pubspec#topics) to
pubspec.yaml.

## Summary (check all that apply)
<!-- Mark the boxes that apply to this PR. Add details if necessary. -->
- [ ] Modified / added code
- [ ] Modified / added tests
- [ ] Modified / added examples
- [x] Modified / added others (pubspec.yaml, workflows, etc...)
- [ ] Updated README
- [ ] Contains breaking changes
  - [ ] Created / updated migration guide
- [x] Incremented version number
  - [x] Updated CHANGELOG

package/CHANGELOG.md

@@ -1,8 +1,16 @@
 # Changelog
 
-## 0.9.0 MM DD, 2024
+## 0.9.0 Jul 24, 2024
+
+This version contains some breaking changes. See the [migration guide](https://github.com/fujidaiti/smooth_sheets/blob/main/docs/migration-guide-0.9.x.md) for more details.
 
 - Dispatch a notification when drag is cancelled (#204)
+- Prefer composition style for SheetKeyboardDismissible (#197)
+- Fix: NavigationSheet throws assertion error when starting to scroll in list view during page transition (#199)
+- Refactor notification dispatch mechanism (#202)
+- Fix: Momentum scrolling continues despite press and hold in list view by (#196)
+- Dispatch a notification when drag is canceled (#204)
+- Refactor: Lift sheet context up by (#201)
 
 ## 0.8.2 Jul 11, 2024
 

package/pubspec.yaml

@@ -1,10 +1,14 @@
 name: smooth_sheets
 description: Sheet widgets with smooth motion and great flexibility. Also supports nested navigation in both imperative and declarative ways.
-version: 0.8.2
+version: 0.9.0
 repository: https://github.com/fujidaiti/smooth_sheets
 screenshots:
   - description: Practical examples of smooth_sheets.
     path: resources/smooth-sheets-thumbnail.png
+topics:
+  - ui
+  - widget
+  - bottom-sheet
 
 environment:
   sdk: ">=3.2.0 <4.0.0"