title: How to tell springdoc-openapi-maven-plugin to generate YAML instead of JSON?
body: <p>I am using the <code>springdoc-maven-openapi-plugin</code> this way:</p>
  <pre><code>        &lt;plugin&gt;
              &lt;groupId&gt;org.springdoc&lt;/groupId&gt;
              &lt;artifactId&gt;springdoc-openapi-maven-plugin&lt;/artifactId&gt;
              &lt;version&gt;1.1&lt;/version&gt;
              &lt;executions&gt;
                  &lt;execution&gt;
                      &lt;id&gt;integration-test&lt;/id&gt;
                      &lt;goals&gt;
                          &lt;goal&gt;generate&lt;/goal&gt;
                      &lt;/goals&gt;
                  &lt;/execution&gt;
              &lt;/executions&gt;
              &lt;configuration&gt;
                  &lt;apiDocsUrl&gt;http://localhost:9090/v3/api-docs&lt;/apiDocsUrl&gt;
                  &lt;outputDir&gt;${project.build.directory}/my_open_api_specification/&lt;/outputDir&gt;
                  &lt;outputFileName&gt;my_open_api_specification.yml&lt;/outputFileName&gt;
                  &lt;skip&gt;false&lt;/skip&gt;
              &lt;/configuration&gt;
          &lt;/plugin&gt;
  </code></pre>
  <p>This results in an OpenAPI doc in the target folder with a name having a suffix &quot;<em>.yml</em>&quot; but in fact it is a JSON.</p>
  <p>How can I tell the plugin to effectively create the doc in YAML format?</p>