feat(core): Add payments update-intent API for v2 (#6490)

Co-authored-by: hyperswitch-bot[bot] <148525504+hyperswitch-bot[bot]@users.noreply.github.com>

crates/openapi/src/openapi_v2.rs

@@ -124,6 +124,7 @@ Never share your secret api keys. Keep them guarded and secure.
         //Routes for payments
         routes::payments::payments_create_intent,
         routes::payments::payments_get_intent,
+        routes::payments::payments_update_intent,
         routes::payments::payments_confirm_intent,
         routes::payments::payment_status,
 
@@ -353,9 +354,11 @@ Never share your secret api keys. Keep them guarded and secure.
         api_models::payments::PaymentsSessionRequest,
         api_models::payments::PaymentsSessionResponse,
         api_models::payments::PaymentsCreateIntentRequest,
+        api_models::payments::PaymentsUpdateIntentRequest,
         api_models::payments::PaymentsIntentResponse,
         api_models::payments::PazeWalletData,
         api_models::payments::AmountDetails,
+        api_models::payments::AmountDetailsUpdate,
         api_models::payments::SessionToken,
         api_models::payments::ApplePaySessionResponse,
         api_models::payments::ThirdPartySdkSessionResponse,

crates/openapi/src/routes/payments.rs

@@ -646,6 +646,43 @@ pub fn payments_create_intent() {}
 )]
 #[cfg(feature = "v2")]
 pub fn payments_get_intent() {}
+
+/// Payments - Update Intent
+///
+/// **Update a payment intent object**
+///
+/// You will require the 'API - Key' from the Hyperswitch dashboard to make the call.
+#[utoipa::path(
+  put,
+  path = "/v2/payments/{id}/update-intent",
+  params (("id" = String, Path, description = "The unique identifier for the Payment Intent"),
+      (
+        "X-Profile-Id" = String, Header,
+        description = "Profile ID associated to the payment intent",
+        example = json!({"X-Profile-Id": "pro_abcdefghijklmnop"})
+      ),
+    ),
+  request_body(
+      content = PaymentsUpdateIntentRequest,
+      examples(
+          (
+              "Update a payment intent with minimal fields" = (
+                  value = json!({"amount_details": {"order_amount": 6540, "currency": "USD"}})
+              )
+          ),
+      ),
+  ),
+  responses(
+      (status = 200, description = "Payment Intent Updated", body = PaymentsIntentResponse),
+      (status = 404, description = "Payment Intent Not Found")
+  ),
+  tag = "Payments",
+  operation_id = "Update a Payment Intent",
+  security(("api_key" = [])),
+)]
+#[cfg(feature = "v2")]
+pub fn payments_update_intent() {}
+
 /// Payments - Confirm Intent
 ///
 /// **Confirms a payment intent object with the payment method data**