fix: upgrade hidstream from 2.0.1 to 2.1.0

Snyk has created this PR to upgrade hidstream from 2.0.1 to 2.1.0.

See this package in npm:
https://www.npmjs.com/package/hidstream

See this project in Snyk:
https://app.snyk.io/org/dceejay/project/ad08ee11-0060-45c1-ba51-065744f07906?utm_source=github&utm_medium=referral&page=upgrade-pr

hardware/makey/package.json

@@ -3,7 +3,7 @@
     "version"       : "0.0.4",
     "description"   : "A Node-RED node to read from a MakeyMakey input device.",
     "dependencies"  : {
-        "hidstream": "2.0.*"
+        "hidstream": "2.1.0"
     },
     "repository" : {
         "type":"git",