Update core.rs

Author: selectdev

src/rpc/core.rs

@@ -553,6 +553,7 @@ impl RPCMethod {
                 // Add to cache server using borealis
                 #[derive(serde::Serialize, serde::Deserialize)]
                 struct BorealisCacheServer {
+                    guild_id: String,
                     name: String,
                     invite_code: String,
                     added: bool,