Add Github action script

Author: adimiz1

.github/workflows/ci.yml

@@ -0,0 +1,20 @@
+# .github/workflows/ci.yml
+name: CI – Cloudinary React Native SDK
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-22.04
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 18
+          cache: npm
+
+      - run: npm ci
+      - run: npm run prepack
+      - run: npm test