chore: upgrade example app - RN 0.85 (#525)

# Summary

Upgrades example app to RN 0.85

## Test Plan

Ensure apps builds and works fine on mobile platforms 

## Screenshots / Videos

n/a

## Compatibility

| OS      | Implemented |
| ------- | :---------: |
| iOS     |    ✅     |
| Android |    ✅     |

## Checklist

- [x] E2E tests are passing
- [x] Required E2E tests have been added (if applicable)

Author: exploIF

README.md

@@ -42,7 +42,7 @@ We can help you build your next dream product –
 ## Prerequisites
 
 - `react-native-enriched` currently supports only Android and iOS platforms
-- It works only with [the React Native New Architecture (Fabric)](https://reactnative.dev/architecture/landing-page) and supports following React Native releases: `0.81`, `0.82`, `0.83` and `0.84`.
+- It works only with [the React Native New Architecture (Fabric)](https://reactnative.dev/architecture/landing-page) and supports following React Native releases: `0.81`, `0.82`, `0.83`, `0.84` and `0.85`.
 - If you would like to use `react-native-enriched` in React Native `0.79` or `0.80` use `react-native-enriched 0.4.x`.
 
 ## Installation

apps/example/Gemfile

@@ -14,3 +14,4 @@ gem 'bigdecimal'
 gem 'logger'
 gem 'benchmark'
 gem 'mutex_m'
+gem 'nkf'

apps/example/Gemfile.lock

@@ -107,6 +107,7 @@ DEPENDENCIES
   concurrent-ruby (< 1.3.4)
   logger
   mutex_m
+  nkf
   xcodeproj (< 1.26.0)
 
 RUBY VERSION

apps/example/android/gradle/wrapper/gradle-wrapper.jar

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.0.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME