chore: add v3.4.5 announce bar

Author: SWHL

overrides/main.html

@@ -1,7 +1,7 @@
 {% extends "base.html" %}
 
 {% block announce %}
-    <p>🎉 rapidocr v3.4.3更新日志 → <a href="https://rapidai.github.io/RapidOCRDocs/main/changelog/v3.4.3/" target="_blank">link</a></p>
+    <p>🎉 rapidocr v3.4.5更新日志 → <a href="https://rapidai.github.io/RapidOCRDocs/main/changelog/v3.4.5/" target="_blank">link</a></p>
 {% endblock %}
 
 {% block outdated %}