feat: change minimum support to node v12+

Author: KyleRoss

package.json

@@ -1,8 +1,7 @@
 {
   "name": "lambda-log",
   "version": "3.1.0",
-  "description": "Lightweight logging library for any Node 10+ applications",
-  "main": "index.js",
+  "description": "Lightweight logging library for any Node 12+ applications",
   "main": "dist/cjs/index.js",
   "types": "dist/cjs/index.d.ts",
   "exports": {
@@ -64,7 +63,7 @@
   },
   "homepage": "https://lambdalog.dev",
   "engines": {
-    "node": ">=10.0.0"
+    "node": ">=12"
   },
   "devDependencies": {
     "@commitlint/cli": "^13.2.1",