add pnpm debug file to Node.gitignore

Author: sakurayang

Node.gitignore

@@ -5,6 +5,7 @@ npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
 lerna-debug.log*
+.pnpm-debug.log*
 
 # Diagnostic reports (https://nodejs.org/api/report.html)
 report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json