ci: update Node.js versions in tests

Use maintenance and current Node.js versions in CI workflows.

Author: KevinEady

.github/workflows/ci-win.yml

@@ -18,9 +18,10 @@ jobs:
           - standard
           - experimental
         node-version:
-          - 18.x
           - 20.x
           - 22.x
+          - 24.x
+          - 25.x
         architecture: [x64, x86]
         os:
           - windows-2022

.github/workflows/ci.yml

@@ -18,9 +18,10 @@ jobs:
           - standard
           - experimental
         node-version:
-          - 18.x
           - 20.x
           - 22.x
+          - 24.x
+          - 25.x
         os:
           - macos-latest
           - ubuntu-latest