Update Node.js version in CI workflow

Author: aladdin-add

.github/workflows/ci.yml

@@ -28,7 +28,7 @@ jobs:
             fail-fast: false
             matrix:
                 os: [ubuntu-latest]
-                node: [25.x, 24.x, 22.x, 20.x, 18.x, "18.18.0"]
+                node: [25.x, 24.x, 22.x, 20.x, "20.19.0"]
                 include:
                     - os: windows-latest
                       node: "lts/*"