Don't pin versions in devEngines

This change is required to make the release CI work. The mismatched `npm` version in `devEngines` blocks the `npm i -g npm`, so it is impossible for `npm` to update itself.

Can revert this change only after Node.js version managers start using `devEngines` to automatically set `node` and `npm` versions.

Author: ardislu

package.json

@@ -20,11 +20,11 @@
   "devEngines": {
     "runtime": {
       "name": "node",
-      "version": "24.9.0"
+      "version": ">=24.9.0"
     },
     "packageManager": {
       "name": "npm",
-      "version": "11.6.1"
+      "version": ">=11.6.0"
     }
   },
   "files": [