feat(router): Enable client_secret auth for payments_get_intent [v2]

Author: AnuthaDev

crates/router/src/routes/payments.rs

@@ -232,10 +232,16 @@ pub async fn payments_get_intent(
                 header_payload.clone(),
             )
         },
-        &auth::V2ApiKeyAuth {
-            is_connected_allowed: false,
-            is_platform_allowed: false,
-        },
+        auth::api_or_client_auth(
+            &auth::V2ApiKeyAuth {
+                is_connected_allowed: false,
+                is_platform_allowed: false,
+            },
+            &auth::V2ClientAuth(common_utils::types::authentication::ResourceId::Payment(
+                global_payment_id.clone(),
+            )),
+            req.headers(),
+        ),
         api_locking::LockAction::NotApplicable,
     ))
     .await