add a Record type to amino hdwallet code

Author: dynst

packages/amino/src/secp256k1hdwallet.ts

@@ -198,7 +198,7 @@ export class Secp256k1HdWallet implements OfflineAminoSigner {
   ): Promise<Secp256k1HdWallet> {
     const root = JSON.parse(serialization);
     if (!isNonNullObject(root)) throw new Error("Root document is not an object.");
-    const untypedRoot: any = root;
+    const untypedRoot: Record<string, any> = root;
     switch (untypedRoot.type) {
       case serializationTypeV1: {
         const decryptedBytes = await decrypt(