Update build to support Node@16 (#385)

Author: cjbarth

.eslintrc.json

@@ -9,7 +9,8 @@
   "parser": "@typescript-eslint/parser",
   "plugins": ["@typescript-eslint", "deprecation"],
   "parserOptions": {
-    "project": "./tsconfig.eslint.json"
+    "project": "./tsconfig.eslint.json",
+    "ext": ".ts"
   },
   "extends": [
     "eslint:recommended",

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        node-version: [14, 16, 18]
+        node-version: [16, 18, 20]
         experimental: [false]
         include:
           - os: ubuntu-latest