docs/trusted-publishing: Enable syntax highlighting for YAML snippet

Author: Turbo87

app/templates/docs/trusted-publishing.hbs

@@ -66,7 +66,7 @@
   </p>
 
   {{!-- template-lint-disable no-whitespace-for-layout  --}}
-  <pre><code>name: Publish to crates.io
+  <pre><code class="language-yaml" {{highlight-syntax}}>name: Publish to crates.io
 on:
   push:
     tags: ['v*']  # Triggers when pushing tags starting with 'v'