refactor: review changes

Author: 0xClandestine

src/contracts/interfaces/ISignatureUtilsMixin.sol

@@ -1,6 +1,8 @@
 // SPDX-License-Identifier: BUSL-1.1
 pragma solidity >=0.5.0;
 
+import "./ISemVerMixin.sol";
+
 interface ISignatureUtilsMixinErrors {
     /// @notice Thrown when a signature is invalid.
     error InvalidSignature();
@@ -35,7 +37,7 @@ interface ISignatureUtilsMixinTypes {
  * @author Layr Labs, Inc.
  * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service
  */
-interface ISignatureUtilsMixin is ISignatureUtilsMixinErrors, ISignatureUtilsMixinTypes {
+interface ISignatureUtilsMixin is ISignatureUtilsMixinErrors, ISignatureUtilsMixinTypes, ISemVerMixin {
     /// @notice Computes the EIP-712 domain separator used for signature validation.
     /// @dev The domain separator is computed according to EIP-712 specification, using:
     ///      - The hardcoded name "EigenLayer"