chore(deps): update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/ci.yml

@@ -25,7 +25,7 @@ jobs:
       CYPRESS_INSTALL_BINARY: 0
     name: Node ${{ matrix.node-version }} on ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           submodules: 'recursive'
       - uses: pnpm/action-setup@v3

.github/workflows/publish.yml

@@ -14,7 +14,7 @@ jobs:
       contents: read
       id-token: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: pnpm/action-setup@v3
         with:
           version: 10.24.0