Merge pull request #1 from cpp-lln-lab/dependabot/github_actions/actions/checkout-6

Bump actions/checkout from 3 to 6

Author: Remi-Gau

.github/workflows/validation.yml

@@ -16,7 +16,7 @@ jobs:
   validate_cff:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: Check whether the citation metadata from CITATION.cff is valid
       uses: citation-file-format/cffconvert-github-action@2.0.0
       with: