Merge pull request #259 from smsapi/dependabot/github_actions/actions/checkout-6

Bump actions/checkout from 5 to 6

Author: pdziewa

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
         node-version: [18.x, 20.x, 22.x, 24.x]
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v5