fix: operator<>AVS mapping tests (#407)

* test: added back avsRegistration tests

* fix: fuzz runs 4096

* fix: broken fuzz test

src/test/events/IAVSDirectoryEvents.sol

@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: BUSL-1.1
+pragma solidity =0.8.12;
+
+import "src/contracts/interfaces/IAVSDirectory.sol";
+
+interface IAVSDirectoryEvents {
+    /**
+     * @notice Emitted when @param avs indicates that they are updating their MetadataURI string
+     * @dev Note that these strings are *never stored in storage* and are instead purely emitted in events for off-chain indexing
+     */
+    event AVSMetadataURIUpdated(address indexed avs, string metadataURI);
+
+    /// @notice Emitted when an operator's registration status for an AVS is updated
+    event OperatorAVSRegistrationStatusUpdated(address indexed operator, address indexed avs, IAVSDirectory.OperatorAVSRegistrationStatus status);
+}

src/test/mocks/ERC20Mock.sol

@@ -82,6 +82,11 @@ contract ERC20Mock is Context, IERC20 {
         return _allowances[owner][spender];
     }
 
+    function mint(address to, uint256 amount) public virtual {
+        address owner = _msgSender();
+        _mint(owner, amount);
+    }
+
     /**
      * @dev See {IERC20-approve}.
      *