travis: work around "timeout features"

.travis.yml

@@ -69,7 +69,7 @@ matrix:
 
         # Build the iOS framework and upload it to CocoaPods and Azure
         - gem install cocoapods --pre
-        - go run build/ci.go xcode -signer IOS_SIGNING_KEY -deploy trunk -upload gethstore/builds
+        - travis_wait 30 go run build/ci.go xcode -signer IOS_SIGNING_KEY -deploy trunk -upload gethstore/builds
 
         # Build the Android archive and upload it to Maven Central and Azure
         - brew update