fix: PR comments being rendered as code blocks

Author: hrideshmg

templates/ci/pr_comment.txt

@@ -33,9 +33,9 @@ NOTE: The following tests have been failing on the master branch as well as the
 <li> ccextractor {{ test.command }} <a href="{{ url_for('sample.sample_by_id', sample_id=test.sample.id, _external=True) }}">{{ test.sample.sha[:10] }}...</a>, Last passed: 
 {% set last_passed_id = test.last_passed_on_windows if platform.lower() == 'windows' else test.last_passed_on_linux %}
 {% if last_passed_id %}
-	<a href="{{ url_for('test.by_id', test_id=last_passed_id, _external=True) }}">Test {{ last_passed_id }}</a>
+<a href="{{ url_for('test.by_id', test_id=last_passed_id, _external=True) }}">Test {{ last_passed_id }}</a>
 {% else %}
-	<span>Never</span>
+<span>Never</span>
 {% endif %}
 </li>
 {% endfor %}