feat: Improved pip failure logging (#813)

Co-authored-by: Justin Lyons <[email protected]>

Author: babyhuey

lib/pip.js

@@ -423,8 +423,8 @@ async function installRequirements(targetFolder, pluginInstance) {
         }
 
         if (log) {
-          log.info(`Stdout: ${e.stdoutBuffer}`);
-          log.info(`Stderr: ${e.stderrBuffer}`);
+          log.error(`Stdout: ${e.stdoutBuffer}`);
+          log.error(`Stderr: ${e.stderrBuffer}`);
         } else {
           serverless.cli.log(`Stdout: ${e.stdoutBuffer}`);
           serverless.cli.log(`Stderr: ${e.stderrBuffer}`);