[Node] Ignore diagnostic report files (#2971)

* [Node] Ignore diagnostic report files

* Add documentation URL

* Stricter regex

Author: Richienb

Node.gitignore

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