Fix Danger failing this PR

Author: lmarceau

Dangerfile.swift

@@ -432,6 +432,9 @@ class CodeUsageDetector {
             let lineNumber = index + 1
             if keyword.shouldComment {
                 markdown(String(format: message, file, lineNumber))
+            } else if keyword == .deferred {
+                // We cannot check if it's on a line added, so we only warn for deferred here
+                warn(String(format: message, file, lineNumber))
             } else {
                 fail(String(format: message, file, lineNumber))
             }