docs: add Silicon simulator limitation using barcode-scanner

[Minishlink]

Hello,

I stumbled upon this problem yesterday: Google doesn't ship with a arm64 xcframework so you can't use your regular simulators on a Silicon Mac. I feel like it's worth adding this information in the README because it can be a no-go straightaway. https://github.com/margelo/react-native-nitro-zxing was a welcome surprise :) (and it makes much more sense than using ML for this use-case)

Best,
Louis

[vercel]

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[Minishlink]

Please note that current version of nitro-zxing doesn't seem fully compatible with current version of vision-camera, I needed to patch the podspec to make every header public as a quick workaround

s.public_header_files = [
    "cpp/**/*.{h,hpp}",
    "ios/**/*.{h,hpp}",
]