chore: bump up actions/checkout action to v6

Author: renovate[bot]

.github/workflows/CI.yml

@@ -28,7 +28,7 @@ jobs:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: setup pnpm
         uses: pnpm/action-setup@v4
       - name: Setup node
@@ -107,7 +107,7 @@ jobs:
     name: stable - ${{ matrix.settings.target }} - node@20
     runs-on: ${{ matrix.settings.host }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: setup pnpm
         uses: pnpm/action-setup@v4
       - name: Setup node
@@ -218,7 +218,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Build FreeBSD
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Build
         id: build
         uses: cross-platform-actions/[email protected]
@@ -283,7 +283,7 @@ jobs:
           - '22'
     runs-on: ${{ matrix.settings.host }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: setup pnpm
         uses: pnpm/action-setup@v4
       - name: Setup node
@@ -322,7 +322,7 @@ jobs:
           - '22'
     runs-on: ${{ contains(matrix.target, 'aarch64') && 'ubuntu-24.04-arm' || 'ubuntu-latest' }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: setup pnpm
         uses: pnpm/action-setup@v4
       - name: Setup node
@@ -380,7 +380,7 @@ jobs:
       - build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: setup pnpm
         uses: pnpm/action-setup@v4
       - name: Setup node
@@ -419,7 +419,7 @@ jobs:
       - test-linux-binding
       - test-wasi
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: setup pnpm
         uses: pnpm/action-setup@v4
       - name: Setup node