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] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci.yaml

@@ -16,7 +16,7 @@ jobs:
       matrix:
         node: ["18", "20", "22", "24"]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: rustup update stable && rustup target add wasm32-unknown-unknown
       - uses: actions/setup-node@v4
         with:

.github/workflows/claude.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 15
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: shiguredo/github-actions/.github/actions/claude-code-action@main
         with:
           api_key: ${{ env.CLAUDE_API_KEY }}

.github/workflows/codeql-analysis.yml

@@ -38,7 +38,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL

.github/workflows/deploy.yml

@@ -10,7 +10,7 @@ jobs:
   build:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: rustup update stable && rustup target add wasm32-unknown-unknown
       - uses: actions/setup-node@v4
         with:

.github/workflows/npm-publish.yml

@@ -66,7 +66,7 @@ jobs:
     runs-on: ubuntu-24.04
     needs: [determine-package]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v4
         with:
           node-version: 22
@@ -91,7 +91,7 @@ jobs:
       id-token: write
     if: ${{ needs.determine-package.outputs.is_canary == 'true' }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-node@v4
         with:
@@ -122,7 +122,7 @@ jobs:
       id-token: write
     if: ${{ needs.determine-package.outputs.is_canary == 'false' }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-node@v4
         with:

.github/workflows/release.yaml

@@ -29,7 +29,7 @@ jobs:
       - create-release-draft
     if: always()
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: rtCamp/action-slack-notify@v2
         if: |
           needs.create-release-draft.result == 'failure'