[camera_avfoundation] Fix Swift 6 Sendability warning in CaptureDevice protocol

The `setExposureTargetBias` completion handler in the `CaptureDevice`
protocol was declared as `((CMTime) -> Void)?`, while the underlying
`AVCaptureDevice` conformance expects `(@sendable (CMTime) -> Void)?`.
This mismatch produces a warning under `SWIFT_STRICT_CONCURRENCY=targeted`
and is a hard error in Swift 6 language mode.

Adds `@Sendable` to the closure parameter in the protocol declaration to
match the AVFoundation signature.

Author: teclas-gif

packages/camera/camera_avfoundation/CHANGELOG.md

@@ -1,3 +1,8 @@
+## 0.10.1+1
+
+* Fixes Swift 6 Sendability warning in `CaptureDevice` protocol by annotating
+  the `setExposureTargetBias` completion handler as `@Sendable`.
+
 ## 0.10.1
 
 * Fixes fatal crash on iPhone 17 when using `ResolutionPreset.max`.

packages/camera/camera_avfoundation/ios/camera_avfoundation/Sources/camera_avfoundation/CaptureDevice.swift

@@ -45,7 +45,7 @@ protocol CaptureDevice: NSObjectProtocol {
   var minExposureTargetBias: Float { get }
   var maxExposureTargetBias: Float { get }
   func setExposureTargetBias(
-    _ bias: Float, completionHandler handler: ((CMTime) -> Void)?)
+    _ bias: Float, completionHandler handler: (@Sendable (CMTime) -> Void)?)
   func isExposureModeSupported(_ mode: AVCaptureDevice.ExposureMode) -> Bool
 
   // Zoom

packages/camera/camera_avfoundation/pubspec.yaml

@@ -2,7 +2,7 @@ name: camera_avfoundation
 description: iOS implementation of the camera plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/camera/camera_avfoundation
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+camera%22
-version: 0.10.1
+version: 0.10.1+1
 
 environment:
   sdk: ^3.9.0