build(deps): bump actions/checkout from 4 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...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/ginkgo_test.yml

@@ -17,7 +17,7 @@ jobs:
         go: ["1.23.x", "1.24.x"]
     runs-on: "ubuntu-latest"
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-go@v5
         with:
           go-version: ${{ matrix.go }}

.github/workflows/go_build.yml

@@ -15,7 +15,7 @@ jobs:
         go: [ "1.21.x", "1.22.x" ]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: actions/setup-go@v5
       with:
         go-version: ${{ matrix.go }}

.github/workflows/integration.yml

@@ -32,7 +32,7 @@ jobs:
       TIMESCALE_FACTOR: 3
     name: "Integration (${{ matrix.os }}, Go ${{ matrix.go }}${{ matrix.race && ', race' || '' }}${{ matrix.use32bit && ', 32-bit' || '' }})"
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-go@v5
         with:
           go-version: ${{ matrix.go }}