refactor: reduce setup.py warnings

lib/manager/pip_setup/extract.js

@@ -58,12 +58,10 @@ async function extractSetupFile(content, packageFile, config) {
       err.message.includes('No such file or directory') &&
       !config.gitFs
     ) {
-      logger.debug({ err }, 'setup.py extraction error');
-      throw new Error(
+      logger.warn(
         'File not found error when extracting setup.py. Ask your Renovate administrator to enable gitFs and try again'
       );
     }
-    logger.warn({ err }, 'Error extracting setup.py');
     throw err;
   }
   // istanbul ignore if
@@ -82,7 +80,7 @@ async function extractPackageFile(content, packageFile, config) {
   try {
     setup = await extractSetupFile(content, packageFile, config);
   } catch (err) {
-    logger.warn({ err }, 'Failed to read setup file');
+    logger.warn({ err }, 'Failed to read setup.py file');
     return null;
   }
   const requires = [];