Add lerna-debug.log to Node.gitignore (#3000)

Lerna is an increasingly popular tool within node ecosystem to manage package dependencies and having writes to a `lerna-debug.log` following the yarn and npm precedence when error is encoutered.

Node.gitignore

@@ -4,6 +4,8 @@ logs
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
+lerna-debug.log*
+
 
 # Diagnostic reports (https://nodejs.org/api/report.html)
 report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json