fix(api_key): fix api key list and update endpoints for v2 (#5980)

crates/api_models/src/api_keys.rs

@@ -154,7 +154,7 @@ pub struct RevokeApiKeyResponse {
 }
 
 /// The constraints that are applicable when listing API Keys associated with a merchant account.
-#[derive(Clone, Debug, Deserialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 #[serde(deny_unknown_fields)]
 pub struct ListApiKeyConstraints {
     /// The maximum number of API Keys to include in the response.

crates/api_models/src/events.rs

@@ -90,6 +90,7 @@ impl_api_event_type!(
         CardInfoResponse,
         CreateApiKeyResponse,
         CreateApiKeyRequest,
+        ListApiKeyConstraints,
         MerchantConnectorDeleteResponse,
         MerchantConnectorUpdate,
         MerchantConnectorCreate,