chore: loopback light client must be public

evm/contracts/clients/LoopbackClient.sol

@@ -222,13 +222,7 @@ contract LoopbackClient is
         uint32 clientId,
         bytes calldata clientMessageBytes,
         address
-    )
-        external
-        override
-        onlyIBC
-        whenNotPaused
-        returns (ConsensusStateUpdate memory)
-    {
+    ) external override whenNotPaused returns (ConsensusStateUpdate memory) {
         Header calldata header;
         assembly {
             header := clientMessageBytes.offset
@@ -261,7 +255,7 @@ contract LoopbackClient is
         uint32 clientId,
         bytes calldata clientMessageBytes,
         address
-    ) external override onlyIBC whenNotPaused {
+    ) external override {
         revert LoopbackClientLib.ErrUnsupported();
     }
 

evm/evm.nix

@@ -1471,6 +1471,7 @@ _: {
                         eudrop = "EUDrop";
                         quick-withdrawal = "QuickWithdrawal";
                         z-asset = "ZAsset";
+                        loopback-client = "LoopbackClient";
                       }
                   )
                 ))

evm/scripts/Deploy.s.sol

@@ -2711,3 +2711,22 @@ contract SafeUpgradeZAsset is BaseUpgrade {
         upgradeCall = new bytes(0);
     }
 }
+
+contract SafeUpgradeLoopbackClient is BaseUpgrade {
+    constructor() BaseUpgrade(true, false) {}
+
+    function upgradeParameters()
+        internal
+        override
+        returns (
+            address targetContract,
+            address newImplementation,
+            bytes memory upgradeCall
+        )
+    {
+        targetContract = getDeployed(LIGHT_CLIENT_SALT.LOOPBACK);
+        address handler = getDeployed(IBC_SALT.BASED);
+        newImplementation = address(new LoopbackClient(handler));
+        upgradeCall = new bytes(0);
+    }
+}