Update package.json engine to >=20.0.0 <25.0.0

Author: bobbrodie

package-lock.json

@@ -3,7 +3,7 @@
   "version": "7.0.0",
   "description": "Complete version of the NodeJS library for the new cryptographically secure BitPay API",
   "engines": {
-    "node": ">=20.0.0 <23.0.0"
+    "node": ">=20.0.0 <25.0.0"
   },
   "main": "dist/index",
   "exports": {