ci(lint-ansible): drop the standalone 'docker version' diagnostic step

INFINITO_LINT_RUNNER is fixed to host on this workflow, so no docker
interaction happens during the lint — the step was pure log noise.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.github/workflows/lint-ansible.yml

@@ -47,8 +47,5 @@ jobs:
         # script directly without going through `make`.
         run: PYTHON=python3 PYTHONPATH=. bash scripts/setup.sh
 
-      - name: Show Docker version
-        run: docker version
-
       - name: Run lint-ansible via make
         run: make lint-ansible