Releasing deposit in full from Mezo

In case there will be a need of pulling all the funds from Mezo we add a
releaseDeposit function that can be called by the owner only.

core/contracts/MezoAllocator.sol

@@ -91,6 +91,8 @@ contract MezoAllocator is IDispatcher, Ownable2Step {
     event MaintainerAdded(address indexed maintainer);
     /// @notice Emitted when the maintainer address is updated.
     event MaintainerRemoved(address indexed maintainer);
+    /// @notice Emitted when tBTC is released from MezoPortal.
+    event DepositReleased(uint256 indexed depositId, uint256 amount);
     /// @notice Reverts if the caller is not an authorized account.
     error NotAuthorized();
     /// @notice Reverts if the caller is not a maintainer.
@@ -178,6 +180,18 @@ contract MezoAllocator is IDispatcher, Ownable2Step {
         tbtc.safeTransfer(address(stbtc), amount);
     }
 
+    /// @notice Releases deposit in full from MezoPortal.
+    function releaseDeposit() external onlyOwner {
+        uint96 amount = mezoPortal
+            .getDeposit(address(this), address(tbtc), depositId)
+            .balance;
+
+        emit DepositReleased(depositId, amount);
+        depositBalance = 0;
+        mezoPortal.withdraw(address(tbtc), depositId, amount);
+        tbtc.safeTransfer(address(stbtc), tbtc.balanceOf(address(this)));
+    }
+
     /// @notice Updates the maintainer address.
     /// @param maintainerToAdd Address of the new maintainer.
     function addMaintainer(address maintainerToAdd) external onlyOwner {