ci(deps): bump actions/checkout from 5 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: 检出代码
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: 设置 Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v5
@@ -75,7 +75,7 @@ jobs:
 
     steps:
       - name: 检出代码
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: 设置 Node.js
         uses: actions/setup-node@v5

.github/workflows/docs.yml

@@ -30,7 +30,7 @@ jobs:
 
     steps:
       - name: 检出代码
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 

.github/workflows/release.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4