Update node-requirements.mdx (#863)

add specs for latitude.sh 

benchmark results: https://aptos-org.slack.com/archives/C08GJ4TP8PL/p1741791953656859?thread_ts=1741640921.491659&cid=C08GJ4TP8PL

Author: michelle-aptos

apps/nextra/pages/en/network/nodes/validator-node/node-requirements.mdx

@@ -58,6 +58,8 @@ satisfy the requirements outlined below).
 | AWS            | c6i.16xlarge + io2 EBS volume      | With 60K IOPS                         |
 | GCP            | t2d-standard-60 + pd-ssd           | With 60K IOPS                         |
 | Azure          | Standard_D64_v5                    | With 64K IOPS                         |
+| Latitude.sh    | m4.large, rs4.large or rs4.xlarge  | With 64K IOPS                         |
+
 
 
 ### Performance benchmarking