Release 1.3: XCFramework for macOS (Universal) & iOS (Device + Simulator)

This release packages webrtc-audio-processing version 1.3 as an XCFramework, providing binaries for both macOS and iOS platforms.

Included in this release:

• macOS Universal Binary:

1. Supports arm64 and x86_64 architectures.

• iOS XCFramework:

1. Supports arm64 for physical devices.
2. Supports x86_64 and arm64 for simulators.

This XCFramework simplifies integration into both macOS and iOS projects, ensuring compatibility across multiple architectures.