Bump actions/checkout from 4.2.2 to 4.3.0 (#240)

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.2.2 to 4.3.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4.2.2...v4.3.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 4.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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/pr_validation.yaml

@@ -30,7 +30,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.3.0
         with:
           lfs: true
           fetch-depth: 0
@@ -71,7 +71,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.3.0
         with:
           lfs: true
           fetch-depth: 0