fix(samsung_pay): populate payment_method_data in the payment response (#7095)

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

crates/api_models/src/payments/additional_info.rs

@@ -219,5 +219,5 @@ pub struct WalletAdditionalDataForCard {
     pub card_network: String,
     /// The type of payment method
     #[serde(rename = "type")]
-    pub card_type: String,
+    pub card_type: Option<String>,
 }