feat(router): added dispute retrieve and dispute list apis (#842)

Co-authored-by: Sangamesh <sangamesh.kulkarni@juspay.in>
Co-authored-by: sai harsha <sai.harsha@sai.harsha-MacBookPro>
Co-authored-by: Arun Raj M <jarnura47@gmail.com>

crates/storage_models/src/schema.rs

@@ -132,6 +132,7 @@ diesel::table! {
         updated_at -> Nullable<Varchar>,
         created_at -> Timestamp,
         modified_at -> Timestamp,
+        connector -> Varchar,
     }
 }