upgrade typescript to latest

Co-authored-by: Keith Cirkel <keithamus@users.noreply.github.com>

package.json

@@ -29,7 +29,6 @@
       "plugin:github/typescript"
     ]
   },
-  "dependencies": {},
   "devDependencies": {
     "@github/prettier-config": "0.0.4",
     "chai": "^4.2.0",
@@ -42,7 +41,7 @@
     "karma-mocha-reporter": "^2.2.5",
     "mocha": "^7.1.1",
     "rollup": "^2.4.0",
-    "typescript": "^3.8.3"
+    "typescript": "^4.4.4"
   },
   "eslintIgnore": [
     "dist/"