fix: upgrade tus-node-server from 0.3.2 to 0.8.1

Snyk has created this PR to upgrade tus-node-server from 0.3.2 to 0.8.1.

See this package in npm:
https://www.npmjs.com/package/tus-node-server

See this project in Snyk:
https://app.snyk.io/org/reactioncommerce/project/098fbe61-d3b4-48a1-bb9f-3ae96e475f53?utm_source=github&utm_medium=referral&page=upgrade-pr

apps/meteor-blaze-app/package.json

@@ -64,7 +64,7 @@
     "query-string": "^5.1.0",
     "sharp": "^0.29.3",
     "tus-js-client": "^1.5.1",
-    "tus-node-server": "~0.3.2"
+    "tus-node-server": "~0.8.1"
   },
   "devDependencies": {
     "@babel/cli": "^7.7.5",