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/build.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 15
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-go@v6
         with:
@@ -38,7 +38,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Login to Docker Hub
         id: login

.github/workflows/version.yml

@@ -20,7 +20,7 @@ jobs:
 
     steps:
     - name: Checkout repo
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Install CLI
       run: |
@@ -52,5 +52,5 @@ jobs:
   #  runs-on: windows-latest
   #  timeout-minutes: 15
   #  steps:
-  #  - uses: actions/checkout@v4
+  #  - uses: actions/checkout@v6
 #