Bump actions/checkout from 6.0.2 to 6.0.3

Bumps [actions/checkout](https://github.com/actions/checkout) from 6.0.2 to 6.0.3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v6.0.2...v6.0.3)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/lint-on-push-pr.yml

@@ -10,7 +10,7 @@ jobs:
     steps:
 
       - name: Checkout repository code
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
 
       - name: Set up Node.js
         uses: actions/setup-node@v6.4.0

.github/workflows/sync-changes-to-gitlab.yml

@@ -16,7 +16,7 @@ jobs:
     steps:
 
       - name: Checkout awesome-scripts/awesome-userscripts
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
         with:
           fetch-depth: 0
 

.github/workflows/validate-links-on-push-pr.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
 
       - name: Restore lychee cache
         id: restore-cache