refactor: remove engines entry, update runtime node version check

Author: panva

lib/provider.js

@@ -26,9 +26,9 @@ import get from './helpers/_/get.js';
 import DPoPNonces from './helpers/dpop_nonces.js';
 
 const minimal = 'Hydrogen';
-const { lts } = process.release;
-if (!lts || lts.charCodeAt(0) < minimal.charCodeAt(0)) {
-  attention.warn('Unsupported Node.js runtime version.');
+const { lts: codename } = process.release || {};
+if (!codename || codename.charCodeAt(0) < minimal.charCodeAt(0)) {
+  attention.warn('Unsupported runtime. Use Node.js v18.x LTS, or a later LTS release.');
 }
 
 async function getInteraction(req, res) {

package.json

@@ -96,8 +96,5 @@
     "sinon": "^15.0.0",
     "supertest": "^6.3.1",
     "timekeeper": "^2.2.0"
-  },
-  "engines": {
-    "node": "18"
   }
 }