chore(deps): bump actions/checkout from 4 to 6 (#1726)

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] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/linux-system.yml

@@ -49,7 +49,7 @@ jobs:
                 shell: bash
 
         steps:
-            - uses: actions/checkout@v4
+            - uses: actions/checkout@v6
 
             - name: Setup environment
               id: setup-env

.github/workflows/linux.yml

@@ -14,7 +14,7 @@ jobs:
             packages: write
 
         steps:
-            - uses: actions/checkout@v4
+            - uses: actions/checkout@v6
 
             - name: Run build
               run: |

.github/workflows/windows.yml

@@ -11,7 +11,7 @@ jobs:
         runs-on: windows-2022
 
         steps:
-            - uses: actions/checkout@v4
+            - uses: actions/checkout@v6
 
             - name: Download media-scanner
               uses: robinraju/release-downloader@v1.10