build(deps): bump actions/checkout from 3 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Commits](actions/checkout@v3...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/build.yml

@@ -142,7 +142,7 @@ jobs:
     container:
       image: ghcr.io/linux-nvme/debian:latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Mark repo as safe for git
         run: git config --global --add safe.directory "$GITHUB_WORKSPACE"
       - name: build
@@ -155,7 +155,7 @@ jobs:
     container:
       image: ghcr.io/linux-nvme/alpine:latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Mark repo as safe for git
         run: git config --global --add safe.directory "$GITHUB_WORKSPACE"
       - name: build

.github/workflows/libnvme-cleanup-python.yml

@@ -19,7 +19,7 @@ jobs:
     environment: pypi
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v6
 
       - name: Install pypi-cleanup
         run: pip install pypi-cleanup