infopanel: display JOB_DESCRIPTION as markdown

I would like to have clickable links in the JOB_DESCRIPTION.
With this, I could use the JOB_DESCRIPTION linking to a corresponding
trigger source (e.g. a gitlab pipeline).

templates/webapi/test/infopanel.html.ep

@@ -164,7 +164,7 @@
                         </span>
                     </div>
                 % }
-                % if (my $scenario_description = $job->scenario_description) {
+                % if (my $scenario_description = Mojo::ByteStream->new(OpenQA::Markdown::markdown_to_html($job->scenario_description))) {
                     <div id="scenario-description">
                             %= $scenario_description
                     </div>