[android] �� Update react-native-gesture-handler to 1.6.0 (#7121)

# Why

Part of #7006

# How

- Used `et update-vendored-module` to update `react-native-gesture-handler`.
- Updated versions

[android] �� Update react-native-gesture-handler to 1.6.0 (#7121)

# Why

Part of #7006

# How

- Used `et update-vendored-module` to update `react-native-gesture-handler`.
- Updated versions in some apps.
- Tried to run it on Android... and it turned out there is a new `RNGHModalUtils` file scoped under `com.facebook.react` package so I've copied this file manually to appropriate directory in `expoview`.
- Added a warning saying that `com.facebook.react` needs to be manually updated, we already do the same in `react-native-reanimated`.
- Added changelog entry.

# Test Plan

Tested examples in `native-component-list`.

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