title: petstore URL not disabled in SpringDoc OpenAPi
body: <p>I am using <code>SpringDoc 1.4.3</code> for swagger. <br/>I have added the below configuration to disabled the <code>petstore</code> URLs in <code>application.yml</code></p>
  <p><strong>Configuration</strong></p>
  <pre><code>springdoc:
    swagger-ui:
      disable-swagger-default-url: true
      tags-sorter: alpha
      operations-sorter: alpha
      doc-expansion: none
  </code></pre>
  <p>but when I hit the <a href="https://petstore.swagger.io/v2/swagger.json" rel="noreferrer">https://petstore.swagger.io/v2/swagger.json</a> in explore text box, it is still showing me the petsore URLs as shown in the below image.</p>
  <p><strong>Swagger Image</strong></p>
  <p><a href="https://i.stack.imgur.com/FXcSK.png" rel="noreferrer"><img src="https://i.stack.imgur.com/FXcSK.png" alt="Swagger Image" /></a></p>