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.yaml

@@ -27,11 +27,11 @@ jobs:
     name: Release Audit Tool (RAT)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           path: datafusion-c
       - name: Checkout Arrow
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           path: arrow
           repository: apache/arrow
@@ -49,7 +49,7 @@ jobs:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions-rs/toolchain@v1
         id: rust-toolchain
         with:
@@ -89,7 +89,7 @@ jobs:
           - windows-latest
     runs-on: ${{ matrix.runs-on }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
         if: |
           matrix.runs-on != 'windows-latest'

.github/workflows/doc.yaml

@@ -23,7 +23,7 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
         with:
           python-version: '3.x'
@@ -87,7 +87,7 @@ jobs:
         with:
           name: html
           path: html/
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         if: |
           startsWith(github.ref, 'refs/tags/') ||
             github.ref == 'refs/heads/main'

.github/workflows/package.yaml

@@ -38,7 +38,7 @@ jobs:
               ;;
           esac
           echo "VERSION=${version}" >> ${GITHUB_ENV}
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           submodules: true
           path: datafusion-c-${{ env.VERSION }}
@@ -149,7 +149,7 @@ jobs:
           #   target: ubuntu-jammy-arm64
           #   test-docker-image: arm64v8/ubuntu:jammy
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           submodules: true
       - name: Install dependencies