chore(CI): add Paper CI for main-labs, use RNS_GAMMA_ENABLED=0 (#276)

## Description

Adds CI for Paper on main-labs with `RNS_GAMMA_ENABLED=0`

## Changes

- add `main-labs` branch to Paper CI
- set env variable`RNS_GAMMA_ENABLED` to 0 for Paper CI

## Test code and steps to reproduce

Run CI.

## Checklist

- [x] Included code example that can be used to test this change
- [ ] Ensured that CI passes

Author: kligarski

.github/workflows/android-build-test.yml

@@ -3,6 +3,7 @@ on:
   pull_request:
     branches:
       - main
+      - main-labs
     paths:
       - 'android/**'
       - 'package.json'
@@ -11,13 +12,15 @@ on:
   push:
     branches:
       - main
+      - main-labs
   workflow_dispatch:
 jobs:
   build:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     env:
       WORKING_DIRECTORY: Example
+      RNS_GAMMA_ENABLED: 0
     concurrency:
       group: android-${{ github.ref }}
       cancel-in-progress: true

.github/workflows/ios-build-test.yml

@@ -3,6 +3,7 @@ on:
   pull_request:
     branches:
       - main
+      - main-labs
     paths:
       - '.github/workflows/ios-build-test.yml'
       - 'RNScreens.podspec'
@@ -13,13 +14,15 @@ on:
   push:
     branches:
       - main
+      - main-labs
   workflow_dispatch:
 jobs:
   build:
     runs-on: macos-14
     timeout-minutes: 60
     env:
       WORKING_DIRECTORY: Example
+      RNS_GAMMA_ENABLED: 0
     concurrency:
       group: ios-${{ github.ref }}
       cancel-in-progress: true