ci: Add timeout to RN integration test and disable parallelization (#5977)

Author: itaybre

.github/workflows/test-cross-platform.yml

@@ -30,6 +30,8 @@ jobs:
   test-react-native:
     name: React Native Installation
     runs-on: macos-15
+    # This job can take a while to run, so we set a timeout.
+    timeout-minutes: 30
     steps:
       - uses: actions/checkout@v5
         with:
@@ -67,6 +69,10 @@ jobs:
       - name: Add Sentry/HybridSDK Dependency to RNSentryCocoaTester/Podfile
         run: sed -i '' -e "s/RNSentry.podspec'/RNSentry.podspec'\\n  pod 'Sentry\/HybridSDK', :path => '..\/..\/..\/..\/sentry-cocoa'/" sentry-react-native/packages/core/RNSentryCocoaTester/Podfile
 
+      - name: Disable test parallelization
+        working-directory: sentry-react-native/packages/core/RNSentryCocoaTester
+        run: sed -i '' "s/parallelizable = \"YES\"/parallelizable = \"NO\"/" RNSentryCocoaTester.xcodeproj/xcshareddata/xcschemes/RNSentryCocoaTester.xcscheme
+
       - name: Install App Pods
         working-directory: sentry-react-native/packages/core/RNSentryCocoaTester
         run: pod install