Merge pull request #444 from mozilla/dependabot/npm_and_yarn/glean/types/node-15.12.4

Bump @types/node from 15.12.2 to 15.12.4 in /glean

Author: Beatriz Rizental

glean/package-lock.json

@@ -76,7 +76,7 @@
   "devDependencies": {
     "@types/assert": "^1.5.4",
     "@types/mocha": "^8.2.0",
-    "@types/node": "^15.3.1",
+    "@types/node": "^15.12.4",
     "@types/selenium-webdriver": "^4.0.14",
     "@types/sinon": "^10.0.0",
     "@types/uuid": "^8.3.0",