Merge pull request #3 from EnergySystemsModellingLab/dependabot/github_actions/actions/checkout-6

Bump actions/checkout from 4 to 6

Author: github-actions[bot]

.github/workflows/check-links.yml

@@ -12,7 +12,7 @@ jobs:
     name: Linkspector
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Run linkspector
         uses: umbrelladocs/action-linkspector@v1
         with:

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
         python-version: ['3.13']
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: astral-sh/setup-uv@v7
         with:
           enable-cache: true