Build: Restore Node 18 support

jqueryui.com uses Node 18 for now and it uses this package.

Closes gh-633

Author: mgol

.github/workflows/node.js.yml

@@ -11,8 +11,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        # Node.js 22 is required by jQuery infra
-        NODE_VERSION: [20.x, 22.x]
+        # Node.js 18 is required by jqueryui.com
+        # Remember to include the version used in Dockerfile!
+        NODE_VERSION: [18.x, 20.x, 22.x]
     steps:
     - name: Checkout
       uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

README.md

@@ -1,7 +1,7 @@
 jQuery UI DownloadBuilder & ThemeRoller backend and frontend application.
 
 ## Requirements
-- [node >= 20 and npm](https://nodejs.org/en/download/)
+- [node >=18 and npm](https://nodejs.org/en/download/)
 - ImageMagick 7.x. ([See below for instructions how to install it](#install-imagemagick))
 - grunt-cli: `npm install -g grunt-cli`
 

package.json

@@ -39,6 +39,6 @@
 		"test": "qunit --require ./test/setup.js test"
 	},
 	"engines": {
-		"node": ">=20"
+		"node": ">=18"
 	}
 }