title: M1 docker preview and keycloak 'image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8)' Issue
body: <p>I just downloaded Docker Preview v3.1 <a href="https://docs.docker.com/docker-for-mac/apple-m1/" rel="noreferrer">https://docs.docker.com/docker-for-mac/apple-m1/</a> and tried running keycloak.</p>
  <p>Anyone else running into this issue?</p>
  <pre><code>docker run -p 8080:8080 -e KEYCLOAK_USER=admin -e KEYCLOAK_PASSWORD=admin quay.io/keycloak/keycloak:12.0.4
  WARNING: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested
  </code></pre>