Specify engine requirements more accurately

This is to reflect the version history of util.styleText [1], which I
believe is governing the version requirement once it replaces chalk.

[1] https://nodejs.org/api/util.html#utilstyletextformat-text-options

Author: badeball

CHANGELOG.md

@@ -12,7 +12,7 @@ Breaking changes:
 
   - A branch named `v23.x.y` has been created to continue illustrating how to use Browserify. This is mentioned in the FAQ.
 
-- Bump node requirement from v20.0.0 to v20.12.0.
+- Bump node requirement slightly from v20.0.0 to ^20.12.0, ^21.7.0 or >=22.
 
   - This is in preperation of replacing `chalk` with `util.styleText`.
 

package.json

@@ -132,6 +132,6 @@
     "cypress": "^12.0.0 || ^13.0.0 || ^14.0.0 || ^15.0.0"
   },
   "engines": {
-    "node": ">=20.12.0"
+    "node": "^20.12.0 || ^21.7.0 || >=22"
   }
 }