Update the number of stars of Milvus in README (#7588)

Signed-off-by: Nss892714028 <sida.shen@zilliz.com>

README.md

@@ -72,7 +72,7 @@ Milvus was released under the [open-source Apache License 2.0](https://github.co
 
 <details>
   <summary><b>Community supported, industry recognized</b></summary>
-  With over 1,000 enterprise users, 6,000+ stars on GitHub, and an active open-source community, you’re not alone when you use Milvus. As a graduate project under the <a href="https://lfaidata.foundation/">LF AI & Data Foundation</a>, Milvus has institutional support.
+  With over 1,000 enterprise users, 7,500+ stars on GitHub, and an active open-source community, you’re not alone when you use Milvus. As a graduate project under the <a href="https://lfaidata.foundation/">LF AI & Data Foundation</a>, Milvus has institutional support.
   </details>