refactor(orb): better logging on errors

lib/datasource/orb/index.js

@@ -53,17 +53,12 @@ async function getPkgReleases({ lookupName }) {
     await renovateCache.set(cacheNamespace, cacheKey, dep, cacheMinutes);
     return dep;
   } catch (err) /* istanbul ignore next */ {
+    logger.debug({ err }, 'CircleCI Orb lookup error');
     if (err.statusCode === 404 || err.code === 'ENOTFOUND') {
       logger.info({ lookupName }, `CircleCI Orb lookup failure: not found`);
-      logger.debug({
-        err,
-      });
       return null;
     }
-    logger.warn(
-      { err, lookupName },
-      'CircleCI Orb lookup failure: Unknown error'
-    );
+    logger.warn({ lookupName }, 'CircleCI Orb lookup failure: Unknown error');
     return null;
   }
 }