chore: updated TCO interface

Author: mauricedesaxe

contracts/interfaces/IToucanCarbonOffsets.sol

@@ -30,14 +30,16 @@ interface IToucanCarbonOffsets is IERC20Upgradeable, IERC721Receiver {
 
     function retireFrom(address account, uint256 amount) external;
 
-    function mintCertificate(
+    function mintCertificateLegacy(
+        string calldata retiringEntityString,
         address beneficiary,
         string calldata beneficiaryString,
         string calldata retirementMessage,
         uint256 amount
     ) external;
 
     function retireAndMintCertificate(
+        string calldata retiringEntityString,
         address beneficiary,
         string calldata beneficiaryString,
         string calldata retirementMessage,