fix(ctb): Module constructor allows higher than minimum threshold in Safe

Loosening this requirement should provide added flexibility when setting
up the liveness system

packages/contracts-bedrock/src/Safe/LivenessModule.sol

@@ -57,8 +57,8 @@ contract LivenessModule is ISemver {
         address[] memory owners = _safe.getOwners();
         require(_minOwners <= owners.length, "LivenessModule: minOwners must be less than the number of owners");
         require(
-            _safe.getThreshold() == get75PercentThreshold(owners.length),
-            "LivenessModule: Safe must have a threshold of 75% of the number of owners"
+            _safe.getThreshold() >= get75PercentThreshold(owners.length),
+            "LivenessModule: Safe must have a threshold of at least 75% of the number of owners"
         );
     }
 

packages/contracts-bedrock/test/LivenessModule.t.sol

@@ -64,7 +64,7 @@ contract LivenessModule_TestInit is Test, SafeTestTools {
     }
 }
 
-contract LivenessModule_Constructor_Test is LivenessModule_TestInit {
+contract LivenessModule_Constructor_TestFail is LivenessModule_TestInit {
     /// @dev Tests that the constructor fails if the minOwners is greater than the number of owners
     function test_constructor_minOwnersGreaterThanOwners_reverts() external {
         vm.expectRevert("LivenessModule: minOwners must be less than the number of owners");
@@ -79,11 +79,11 @@ contract LivenessModule_Constructor_Test is LivenessModule_TestInit {
 
     /// @dev Tests that the constructor fails if the minOwners is greater than the number of owners
     function test_constructor_wrongThreshold_reverts() external {
-        uint256 wrongThreshold = livenessModule.get75PercentThreshold(safeInstance.owners.length) + 1;
+        uint256 wrongThreshold = livenessModule.get75PercentThreshold(safeInstance.owners.length) - 1;
         vm.mockCall(
             address(safeInstance.safe), abi.encodeCall(OwnerManager.getThreshold, ()), abi.encode(wrongThreshold)
         );
-        vm.expectRevert("LivenessModule: Safe must have a threshold of 75% of the number of owners");
+        vm.expectRevert("LivenessModule: Safe must have a threshold of at least 75% of the number of owners");
         new LivenessModule({
             _safe: safeInstance.safe,
             _livenessGuard: livenessGuard,