update sponsor (#5030)

Author: fatedier

README.md

@@ -22,6 +22,15 @@ 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.
 
 </div>
+<p align="center">
+  <a href="https://app.requestly.io/api-client/?utm_source=github&utm_medium=partnered&utm_campaign=frp" target="_blank">
+    <img width="480px" src="https://github.com/user-attachments/assets/24670320-997d-4d62-9bca-955c59fe883d">
+    <br>
+    <b>Requestly - Free & Open-Source alternative to Postman</b>
+    <br>
+    <sub>All-in-one platform to Test, Mock and Intercept APIs.</sub>
+  </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

@@ -24,6 +24,15 @@ 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.
 
 </div>
+<p align="center">
+  <a href="https://app.requestly.io/api-client/?utm_source=github&utm_medium=partnered&utm_campaign=frp" target="_blank">
+    <img width="480px" src="https://github.com/user-attachments/assets/24670320-997d-4d62-9bca-955c59fe883d">
+    <br>
+    <b>Requestly - Free & Open-Source alternative to Postman</b>
+    <br>
+    <sub>All-in-one platform to Test, Mock and Intercept APIs.</sub>
+  </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">