Update GitHub Actions to use latest versions for compat with Node 24

Author: iansan5653

.github/workflows/publish.yml

@@ -12,8 +12,8 @@ jobs:
   publish-npm:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/checkout@v6
+      - uses: actions/setup-node@v6
         with:
           node-version: 24
           registry-url: https://registry.npmjs.org/