feat: upgrade nitro CLI version

Bitrise Step updates:
- Add the --output-format=json to the step to set envs using
envman from this step
- Do not throw till the end to be able to set envs from the json output

Nitro CLI change log:
- Remove envman dependency
- Fix an issue when parsing output .apk files
- Add support for Yarn 3
- Fix incorrect ANDROID_HOME error throwing for iOS builds
- Add missing pipefail to xcodebuild command

README.md

@@ -1,3 +1,7 @@
+# GitHub Action - Nitro Runner for iOS
+
+A GitHub Action for running React Native builds for **iOS** using [Nitro](https://nitro.build).
+
 <!-- action-docs-description -->
 ### Description