fix(pip_setup): log content when failing to parse

lib/manager/pip_setup/extract.js

@@ -110,7 +110,7 @@ async function extractPackageFile(content, packageFile, config) {
   try {
     setup = await extractSetupFile(content, packageFile, config);
   } catch (err) {
-    logger.warn({ err }, 'Failed to read setup.py file');
+    logger.warn({ err, content, packageFile }, 'Failed to read setup.py file');
     return null;
   }
   const requires = [];