update sponsors info (#4997)

README.md

@@ -13,6 +13,13 @@ frp is an open source project with its ongoing development made possible entirel
 
 <h3 align="center">Gold Sponsors</h3>
 <!--gold sponsors start-->
+<p align="center">
+  <a href="https://www.recall.ai/?utm_source=github&utm_medium=sponsorship&utm_campaign=fatedier-frp" target="_blank">
+    <b>Recall.ai - API for meeting recordings</b><br>
+    <br>
+    <sup>If you're looking for a meeting recording API, consider checking out Recall.ai, an API that records Zoom, Google Meet, Microsoft Teams, in-person meetings, and more.</sup>
+  </a>
+</p>
 <p align="center">
   <a href="https://go.warp.dev/frp" target="_blank">
     <img width="360px" src="https://raw.githubusercontent.com/warpdotdev/brand-assets/refs/heads/main/Github/Sponsor/Warp-Github-LG-01.png">

README_zh.md

@@ -15,6 +15,13 @@ frp 是一个完全开源的项目，我们的开发工作完全依靠赞助者
 
 <h3 align="center">Gold Sponsors</h3>
 <!--gold sponsors start-->
+<p align="center">
+  <a href="https://www.recall.ai/?utm_source=github&utm_medium=sponsorship&utm_campaign=fatedier-frp" target="_blank">
+    <b>Recall.ai - API for meeting recordings</b><br>
+    <br>
+    <sup>If you're looking for a meeting recording API, consider checking out Recall.ai, an API that records Zoom, Google Meet, Microsoft Teams, in-person meetings, and more.</sup>
+  </a>
+</p>
 <p align="center">
   <a href="https://go.warp.dev/frp" target="_blank">
     <img width="360px" src="https://raw.githubusercontent.com/warpdotdev/brand-assets/refs/heads/main/Github/Sponsor/Warp-Github-LG-01.png">