logs: drop retries debug from gh wrapper

lib/platform/github/gh-got-wrapper.js

@@ -18,7 +18,7 @@ async function get(path, options, retries = 5) {
     logger.trace({ path }, 'Returning cached result');
     return cache[path];
   }
-  logger.debug(`${method.toUpperCase()} ${path} [retries=${retries}]`);
+  logger.debug(`${method.toUpperCase()} ${path}`);
   try {
     if (appMode) {
       const appAccept = 'application/vnd.github.machine-man-preview+json';