cookie search: increase page size to 5k (#127)

Author: aviau

docs/api-reference/astp/endpoints/post-cookies-search.mdx

@@ -50,7 +50,7 @@ See the guide for using this endpoint:
 </ParamField>
 
 <ParamField body="size" type="number">
-  The number of results to fetch. (default: 100, max: 500)
+  The number of results to fetch. (default: 100, max: 5000)
 </ParamField>
 
 <ParamField body="from" type="string">