[android][ios] Upgrade react-native-pager-view to 6.1.2 (#20932)

# Why

Closes ENG-7320

# How

```sh
et uvm -m react-native-pager-view -c v6.1.2
et pods -f
yarn
```


# Test Plan

[android][ios] Upgrade react-native-pager-view to 6.1.2 (#20932)

# Why

Closes ENG-7320

# How

```sh
et uvm -m react-native-pager-view -c v6.1.2
et pods -f
yarn
```


# Test Plan

- [x] test unversioned expo go ios + NCL Pager View
- [x] test unversioned expo go android + NCL Pager View

# Checklist

<!--
Please check the appropriate items below if they apply to your diff.
This is required for changes to Expo modules.
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- [x] Documentation is up to date to reflect these changes (eg:
https://docs.expo.dev and README.md).
- [x] Conforms with the [Documentation Writing Style
Guide](https://github.com/expo/expo/blob/main/guides/Expo%20Documentation%20Writing%20Style%20Guide.md)
- [x] This diff will work correctly for `expo prebuild` & EAS Build (eg:
updated a module plugin).

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