Update CHANGELOG for 3.32.5, 3.32.6 stable hotfix releases (#171891)

Updates `CHANGELOG` for 3.32.5, 3.32.6 stable hotfix releases.

## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [ ] I listed at least one issue that this PR fixes in the description
above.
- [ ] I updated/added relevant documentation (doc comments with `///`).
- [ ] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [ ] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel
on [Discord].

<!-- Links -->
[Contributor Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview
[Tree Hygiene]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md
[test-exempt]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests
[Flutter Style Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md
[Features we expect every widget to implement]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement
[CLA]: https://cla.developers.google.com/
[flutter/tests]: https://github.com/flutter/tests
[breaking change policy]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes
[Discord]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md
[Data Driven Fixes]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md

---------

Co-authored-by: Reid Baker <1063596+reidbaker@users.noreply.github.com>

CHANGELOG.md

@@ -31,6 +31,19 @@ docs/releases/Hotfix-Documentation-Best-Practices.md
 -->
 ## Flutter 3.32 Changes
 
+### [3.32.6](https://github.com/flutter/flutter/releases/tag/3.32.6)
+
+- [flutter/171106](https://github.com/flutter/flutter/pull/171106) - When a scroll view contains a `LayoutBuilder` on any platform, prevent null check crash.
+- [flutter/171239](https://github.com/flutter/flutter/pull/171239) - When using Impeller + Vulkan and transitioning between activities that use Flutter on Android, prevent a crash.
+- [flutter/171737](https://github.com/flutter/flutter/pull/171737) - When using platform views on Android SDK 10-13 (API 29-33) prevent app crash when backgrounding and then foregrounding app.
+
+### [3.32.5](https://github.com/flutter/flutter/releases/tag/3.32.5)
+
+- [flutter/170924](https://github.com/flutter/flutter/pull/170924) - Fix Flutter Windows on devices that only support OpenGL ES 2, like computers with Intel graphics cards.
+- [flutter/170880](https://github.com/flutter/flutter/pull/170880) - Fixes unhandled exception on application shutdown in the debug adapter used by IDEs.
+- [flutter/170846](https://github.com/flutter/flutter/pull/170846) - Fix image decode errors on iOS that could occur if a push notification triggered image decoding while the app is backgrounded.
+- [flutter/171034](https://github.com/flutter/flutter/pull/171034) - Fixed an issue where iOS/macOS workflows may not behave as expected due to missing dev dependencies.
+
 ### [3.32.4](https://github.com/flutter/flutter/releases/tag/3.32.4)
 
 - [flutter/170536](https://github.com/flutter/flutter/issues/170536) - Fixes a code-signing issue on Mac hosts when running `dart` tooling.