Switch CI from Travis to GitHub Actions

Remove .travis.yml and add .github/workflows/ci.yml.
Update README badge accordingly.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: noel-enquanta

.github/workflows/ci.yml

@@ -0,0 +1,23 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Run tests
+        run: |
+          xcodebuild test \
+            -workspace Example/VoiceIt3-IosSDK.xcworkspace \
+            -scheme VoiceIt3-IosSDK-Example \
+            -destination 'platform=iOS Simulator,name=iPhone 15,OS=latest'
+        env:
+          VOICEIT_API_KEY: ${{ secrets.VOICEIT_API_KEY }}
+          VOICEIT_API_TOKEN: ${{ secrets.VOICEIT_API_TOKEN }}

.travis.yml

@@ -1,6 +1,6 @@
 <img src="https://raw.githubusercontent.com/voiceittech/VoiceIt3-IosSDK/master/Graphics/ios.png" width="100%" style="width:100%">
 
-# VoiceIt3 iOS SDK [![Build Status](https://travis-ci.com/voiceittech/VoiceIt3-IosSDK.svg?branch=master)](https://travis-ci.com/voiceittech/VoiceIt3-IosSDK) [![version](https://img.shields.io/cocoapods/v/VoiceIt3-IosSDK.svg?style=flat)](http://cocoapods.org/pods/VoiceIt3-IosSDK) [![name](https://img.shields.io/cocoapods/p/VoiceIt3-IosSDK.svg?style=flat)](http://cocoapods.org/pods/VoiceIt3-IosSDK) ![MIT](https://img.shields.io/github/license/mashape/apistatus.svg)
+# VoiceIt3 iOS SDK [![CI](https://github.com/voiceittech/VoiceIt3-IosSDK/actions/workflows/ci.yml/badge.svg)](https://github.com/voiceittech/VoiceIt3-IosSDK/actions/workflows/ci.yml) [![version](https://img.shields.io/cocoapods/v/VoiceIt3-IosSDK.svg?style=flat)](http://cocoapods.org/pods/VoiceIt3-IosSDK) [![name](https://img.shields.io/cocoapods/p/VoiceIt3-IosSDK.svg?style=flat)](http://cocoapods.org/pods/VoiceIt3-IosSDK) ![MIT](https://img.shields.io/github/license/mashape/apistatus.svg)
 
 A fully comprehensive SDK that gives you access to VoiceIt's API 3.0 featuring Voice + Face Verification and Identification with built in user interfaces and liveness detection.