Merge pull request #721 from arduino/sebromero/pin-npm

Pin NPM version

Author: sebromero

package.json

@@ -22,6 +22,7 @@
     "gatsby": "^4.9.2"
   },
   "volta": {
-    "node": "14.21.1"
+    "node": "14.21.1",
+    "npm": "6.14.17"
   }
 }