[expo-updates-interface][ios] convert to swift (#21646)

# Why

More swift conversions.

# How

Convert manually.

# Test Plan

Run all tests.

# Checklist

<!--
Please check the appro

[expo-updates-interface][ios] convert to swift (#21646)

# Why

More swift conversions.

# How

Convert manually.

# Test Plan

Run all tests.

# Checklist

<!--
Please check the appropriate items below if they apply to your diff.
This is required for changes to Expo modules.
-->

- [ ] 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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