chore: remove err from dep not found info log

lib/datasource/npm.js

@@ -136,7 +136,8 @@ async function getDependency(name, retries = 5) {
       return null;
     }
     if (err.statusCode === 404) {
-      logger.info({ err, name }, `Dependency not found`);
+      logger.info({ name }, `Dependency not found`);
+      logger.debug({ err });
       return null;
     }
     if (err.name === 'ParseError') {