feature(cli): add experimental metro config telemetry (#20885)

# Why

We need to have visibility on what experimental features are being used,
in order to prioritize supporting or finishing these

feature(cli): add experimental metro config telemetry (#20885)

# Why

We need to have visibility on what experimental features are being used,
in order to prioritize supporting or finishing these features.

# How

Added a telemetry event when instantiating Metro, for both `npx expo
start` and `npx expo export`.

# Test Plan

See added test, if a property isn't available, it doesn't matter.

# Checklist

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- [ ] Documentation is up to date to reflect these changes (eg:
https://docs.expo.dev and README.md).
- [ ] Conforms with the [Documentation Writing Style
Guide](https://github.com/expo/expo/blob/main/guides/Expo%20Documentation%20Writing%20Style%20Guide.md)
- [ ] This diff will work correctly for `expo prebuild` & EAS Build (eg:
updated a module plugin).

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Co-authored-by: Expo Bot <[email protected]>

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