chore(deps): update github actions to v6

Author: renovate[bot]

.github/workflows/ci.yml

@@ -19,8 +19,8 @@ jobs:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/checkout@v6
+      - uses: actions/setup-node@v6
         with:
           cache: 'yarn'
       - run: yarn install --immutable