[RESOLVIDO] Could not resolve org.webkit:android-jsc:+ - ReactNative Build Failed

O JCenter será encerrado e agora somente LEITURA e às vezes fica offline causando problemas com compilações. Veja este link: https://blog.gradle.org/jcenter-shutdown.

 Para resolver este problema, atualize o arquivo ./android/build.gradle substituindo Jcenter() para mavenCentral().

FAILURE: Build failed with an exception.

* What went wrong:
Could not determine the dependencies of task ':app:mergeDebugAssets'.
> Could not resolve all task dependencies for configuration ':app:debugRuntimeClasspath'.
   > Could not resolve org.webkit:android-jsc:+.
     Required by:
         project :app
      > Failed to list versions for org.webkit:android-jsc.
         > Unable to load Maven meta-data from https://jcenter.bintray.com/org/webkit/android-jsc/maven-metadata.xml.
            > Could not HEAD 'https://jcenter.bintray.com/org/webkit/android-jsc/maven-metadata.xml'.
               > Read timed out