message: [cluster-test] Highlight breaking changes in changelog
diff: @@ -564,6 +564,7 @@ impl ClusterTestRunner {
  }
  let commit_lines: Vec<_> = commit.commit.message.split('\n').collect();
  let commit_head = commit_lines[0];
  + let commit_head = commit_head.replace("[breaking]", "*[breaking]*");
  let short_sha = &commit.sha[..6];
  let email_parts: Vec<_> = commit.commit.author.email.split('@').collect();
  let author = email_parts[0];
  