If you only want to change that in the Category page and don’t want the other changes that the Discourse Topic Author will make you can override the components/latest-topic-list-item
With something like below in your theme:
<script type="text/x-handlebars" data-template-name="components/latest-topic-list-item">
{{plugin-outlet name="above-latest-topic-list-item" connectorTagName="div"}}
<div class="main-link">
<div class="top-row">
{{raw "topic-status" topic=topic}}
{{topic-link topic}}
{{#if topic.featured_link}}
{{topic-featured-link topic}}
{{/if}}
{{topic-post-badges unreadPosts=topic.unread_posts unseen=topic.unseen url=topic.lastUnreadUrl}}
</div>
<div class="bottom-row">
{{category-link topic.category}}{{discourse-tags topic mode="list"}}{{! intentionally inline to avoid whitespace}}
</div>
</div>
<div class="topic-stats">
{{raw "list/posts-count-column" topic=topic tagName="div"}}
<div class="topic-last-activity">
<a href={{topic.lastPostUrl}} title={{topic.bumpedAtTitle}}>{{format-date topic.bumpedAt format="tiny" noTitle="true"}}</a>
</div>
</div>
<div class="topic-creator">
{{#user-link user=topic.creator}}
{{avatar topic.creator imageSize="large"}}
{{/user-link}}
{{user-avatar-flair user=topic.creator}}
</div>
</script>
But you will be overriding a template so if it ever gets changed in the core, it is up to you to keep it updated.