chore: sync submodule state (parent ref update)

Made-with: Cursor

contracts/registry/TruthNetworkAdapter.sol

@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.20;
+
+/**
+ * @title TruthNetworkAdapter
+ * @notice Minimal adapter on Chain 138 for ChainRegistry: stores Ethereum Truth Bridge address.
+ */
+contract TruthNetworkAdapter {
+    address public immutable ethereumTruthBridge;
+
+    constructor(address _ethereumTruthBridge) {
+        require(_ethereumTruthBridge != address(0), "Zero address");
+        ethereumTruthBridge = _ethereumTruthBridge;
+    }
+}