feat: create key in encryption service for merchant and user (#4910)

Co-authored-by: Arjun Karthik <m.arjunkarthik@gmail.com>
Co-authored-by: hyperswitch-bot[bot] <148525504+hyperswitch-bot[bot]@users.noreply.github.com>

crates/router_env/src/logger/types.rs

@@ -81,6 +81,8 @@ pub enum Flow {
     MerchantConnectorsDelete,
     /// Merchant Connectors list flow.
     MerchantConnectorsList,
+    /// Merchant Transfer Keys
+    MerchantTransferKey,
     /// ConfigKey create flow.
     ConfigKeyCreate,
     /// ConfigKey fetch flow.
@@ -316,6 +318,8 @@ pub enum Flow {
     UserSignUpWithMerchantId,
     /// User Sign In
     UserSignIn,
+    /// User transfer key
+    UserTransferKey,
     /// User connect account
     UserConnectAccount,
     /// Upsert Decision Manager Config