set @types/node version to latest v16 release (#373)

* set @types/node version to latest v16 release

* upgrade workflow to install Node 16

* update tsconfig to use es2015 target and libraries

* pin to actual latest v16 package of @types/node

.github/workflows/check-dist.yml

@@ -22,10 +22,10 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - name: Set Node.js 12.x
+      - name: Set Node.js 16.x
         uses: actions/setup-node@v3
         with:
-          node-version: 12.x
+          node-version: 16.x
           cache: npm
 
       - name: Install dependencies

package.json

@@ -14,7 +14,7 @@
   "devDependencies": {
     "@github/prettier-config": "^0.0.6",
     "@types/jest": "^27.5.0",
-    "@types/node": "~16.18.25",
+    "@types/node": "16.18.26",
     "@typescript-eslint/parser": "^5.59.2",
     "@vercel/ncc": "^0.36.1",
     "concurrently": "^8.0.1",

tsconfig.json

@@ -1,13 +1,14 @@
 {
   "compilerOptions": {
-    "target": "es6" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */,
+    "target": "ES2015" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */,
     "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
     "outDir": "./lib" /* Redirect output structure to the directory. */,
     "rootDir": "./src" /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */,
     "strict": true /* Enable all strict type-checking options. */,
     "noImplicitAny": true /* Raise error on expressions and declarations with an implied 'any' type. */,
     "esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */,
-    "noUncheckedIndexedAccess": true
+    "noUncheckedIndexedAccess": true,
+    "lib": ["ES2015"]
   },
   "exclude": ["node_modules", "**/*.test.ts"]
 }