fix(npm): ignore react-native changelog

lib/workers/pr/changelog/release-notes.js

@@ -111,6 +111,11 @@ function sectionize(text, level) {
 
 async function getReleaseNotesMd(repository, version, githubBaseURL) {
   logger.trace(`getReleaseNotes(${repository}, ${version})`);
+  const skippedRepos = ['facebook/react-native'];
+  // instanbul ignore if
+  if (skippedRepos.includes(repository)) {
+    return null;
+  }
   let changelogFile;
   let changelogMd = '';
   try {