Upgrade packages.

.npmrc

+engine-strict=true

package-lock.json

@@ -33,9 +33,6 @@
         "tslib": "^2.0.0",
         "typescript": "^4.0.0",
         "vite": "^2.1.0"
-      },
-      "engines": {
-        "node": ">= 12.17.0"
       }
     },
     "node_modules/@auditors/core": {

package.json

@@ -36,8 +36,5 @@
     "typescript": "^4.0.0",
     "vite": "^2.1.0"
   },
-  "type": "module",
-  "engines": {
-    "node": ">= 12.17.0"
-  }
+  "type": "module"
 }

tsconfig.json

 {
   "compilerOptions": {
     "moduleResolution": "node",
-    "target": "es2018",
+    "module": "es2020",
+    "lib": ["es2020"],
+    "target": "es2019",
     /**
       svelte-preprocess cannot figure out whether you have a value or a type, so tell TypeScript
       to enforce using \`import type\` instead of \`import\` for Types.