[camera] Fix version and CHANGELOG (#4513)

https://github.com/flutter/plugins/pull/4423 incorrectly added changelog
entries to an already-published version instead of bumping the version,
whcih was missed during review.

Fixes https://github.com/flutter/flutter/issues/93659
diff --git a/packages/camera/camera/CHANGELOG.md b/packages/camera/camera/CHANGELOG.md
index 29750f9..929feea 100644
--- a/packages/camera/camera/CHANGELOG.md
+++ b/packages/camera/camera/CHANGELOG.md
@@ -1,8 +1,11 @@
-## 0.9.4+3
+## 0.9.4+4
 
 * Change Android compileSdkVersion to 31.
 * Remove usages of deprecated Android API `CamcorderProfile`.
 * Update gradle version to 7.0.2 on Android.
+
+## 0.9.4+3
+
 * Fix registerTexture and result being called on background thread on iOS.
 
 ## 0.9.4+2
diff --git a/packages/camera/camera/pubspec.yaml b/packages/camera/camera/pubspec.yaml
index 6b4db7c..905ec43 100644
--- a/packages/camera/camera/pubspec.yaml
+++ b/packages/camera/camera/pubspec.yaml
@@ -4,7 +4,7 @@
   Dart.
 repository: https://github.com/flutter/plugins/tree/master/packages/camera/camera
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+camera%22
-version: 0.9.4+3
+version: 0.9.4+4
 
 environment:
   sdk: ">=2.14.0 <3.0.0"