fix: privacy manifest checks for non mac systems

[damiant]

This pull request addresses a bug with privacy policy checks for XCode projects on Windows and Linux, improves reliability in XCode project parsing, and introduces minor improvements and fixes. The most important changes are grouped below.

Bug Fixes and Platform Checks:

• Added a platform check in checkPrivacyManifest to ensure privacy manifest checks only run on macOS, preventing errors on Windows and Linux. Fixed checkPrivacyManifest hangs on Linux - xcode parser callback never fires #90

Reliability Improvements:

• Updated the parse function for XCode projects to include a 5-second timeout and proper error handling, preventing indefinite hangs if parsing fails.

Async Consistency and Cache Handling:

• Changed calls to clearRefreshCache in privacy manifest-related functions to use await, ensuring proper async execution and cache clearing. [1] [2]
• Added a new clearCocoaPodsCache function to reset CocoaPods cache and error state.

Documentation and Versioning:

• Updated the CHANGELOG.md and package.json to version 2.2.3, noting the privacy policy fix. [1] [2]… improve privacy manifest checks for non-macOS platforms