fix: container runtime

.gitea/workflows/markdown-linters.yaml

@@ -14,10 +14,13 @@ jobs:
     - ubuntu-latest
     steps:
     - uses: actions/checkout@v4.2.2
-    - run: |
+    - name: Install build tools
+      run: |
         apt update --yes
         apt install --yes build-essential
-    - env:
+    - name: Verify links in markdown files
+      env:
+        CONTAINER_RUNTIME: docker
         HELM_IMAGE_REGISTRY_HOST: harbor.cryptic.systems
         HELM_IMAGE_REPOSITORY: docker/library/node
       run: |