Patch 3.0.3

fix:
- Mark completion handlers as https://github.com/sendable in setExposureModeCustom and setExposureTargetBias methods
- Resolves Xcode 26 compilation errors
- Fix maintains backward compatibility and compiles successfully on both Xcode 16.4.0 and Xcode 26.0.0-beta

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Co-authored-by: veraposeidon<veraposeidon@gmail.com>