Pin @types/node dev dependency

Signed-off-by: Matthew Peveler <matt.peveler@gmail.com>

Author: MasterOdin

package.json

@@ -22,6 +22,7 @@
   "devDependencies": {
     "@types/chai": "^4.2.15",
     "@types/mocha": "^8.2.1",
+    "@types/node": "^10.17.60",
     "@typescript-eslint/eslint-plugin": "^4.15.1",
     "@typescript-eslint/parser": "^4.15.1",
     "chai": "^4.2.0",