chore: correct enterprise min active instance quota

Author: tianzhou

mintlify/administration/license.mdx

@@ -38,7 +38,7 @@ A license includes an **instance quota**, which defines:
 
 - Under the **Pro** plan, purchasing **1 to 20 user seats** includes **10 active database instances at no additional cost**.
 
-- Under the **Enterprise** plan, you must purchase a license with a minimum quota of **5 active instances**.
+- Under the **Enterprise** plan, you must purchase a license with a minimum quota of **10 active instances**.
 
 ### Feature Availability