test: standardize semver for harness contracts

Author: bowenli86

src/test/TestConstants.sol

@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: BUSL-1.1
+pragma solidity ^0.8.27;
+
+library TestConstants {
+    string constant TEST_VERSION = "9.9.9";
+}

src/test/harnesses/AllocationManagerHarness.sol

@@ -2,6 +2,8 @@
 pragma solidity ^0.8.27;
 
 import "../../contracts/core/AllocationManager.sol";
+import "forge-std/Test.sol";
+import "../TestConstants.sol";
 
 contract AllocationManagerHarness is AllocationManager {
     using DoubleEndedQueue for DoubleEndedQueue.Bytes32Deque;
@@ -13,7 +15,14 @@ contract AllocationManagerHarness is AllocationManager {
         uint32 _DEALLOCATION_DELAY,
         uint32 _ALLOCATION_CONFIGURATION_DELAY
     )
-        AllocationManager(_delegation, _pauserRegistry, _permissionController, _DEALLOCATION_DELAY, _ALLOCATION_CONFIGURATION_DELAY, "v9.9.9")
+        AllocationManager(
+            _delegation,
+            _pauserRegistry,
+            _permissionController,
+            _DEALLOCATION_DELAY,
+            _ALLOCATION_CONFIGURATION_DELAY,
+            TestConstants.TEST_VERSION
+        )
     {}
 
     function deallocationQueueAtIndex(address operator, IStrategy strategy, uint index) external view returns (bytes32) {

src/test/harnesses/DelegationManagerHarness.sol

@@ -3,6 +3,7 @@ pragma solidity ^0.8.27;
 
 import "../../contracts/core/DelegationManager.sol";
 import "forge-std/Test.sol";
+import "../TestConstants.sol";
 
 contract DelegationManagerHarness is DelegationManager {
     constructor(
@@ -20,7 +21,7 @@ contract DelegationManagerHarness is DelegationManager {
             _pauserRegistry,
             _permissionController,
             _MIN_WITHDRAWAL_DELAY,
-            "v9.9.9"
+            TestConstants.TEST_VERSION
         )
     {}
 

src/test/harnesses/EigenHarness.sol

@@ -2,9 +2,10 @@
 pragma solidity ^0.8.27;
 
 import "../../contracts/token/Eigen.sol";
+import "../TestConstants.sol";
 
 contract EigenHarness is Eigen {
-    constructor(IERC20 _bEIGEN) Eigen(_bEIGEN, "1.6.0") {}
+    constructor(IERC20 _bEIGEN) Eigen(_bEIGEN, TestConstants.TEST_VERSION) {}
 
     /// expose internal mint function
     function mint(address to, uint amount) public {