ci: bump actions

Author: ert78gb

.github/workflows/ci.yml

@@ -20,10 +20,10 @@ jobs:
         os: [ubuntu-latest, ubuntu-24.04-arm, windows-latest, macOS-latest]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version-file: .nvmrc