docs: update install count (#60072)

Author: leerob

docs/05-community/index.mdx

@@ -4,7 +4,7 @@ nav_title: Community
 description: Get involved in the Next.js community.
 ---
 
-With over 4 million weekly downloads, Next.js has a large and active community of developers across the world. Here's how you can get involved in our community:
+With over 5 million weekly downloads, Next.js has a large and active community of developers across the world. Here's how you can get involved in our community:
 
 ## Contributing