fix: warp core sealevel native (#4522)

### Description

- **Modify native adapter collateral balance check**

### Drive-by changes

- None

### Related issues

- Opens #4558

### Backward compatibility

Yes

### Testing

Manual in warp UI, released as a beta build  5.2.1-beta0

.changeset/curvy-baboons-deliver.md

@@ -0,0 +1,5 @@
+---
+'@hyperlane-xyz/sdk': patch
+---
+
+Use collateral account for sealevel native warp route balance

typescript/sdk/src/token/adapters/SealevelTokenAdapter.ts

@@ -516,6 +516,12 @@ export class SealevelHypNativeAdapter extends SealevelHypTokenAdapter {
   }
 
   override async getBalance(owner: Address): Promise<bigint> {
+    if (eqAddress(owner, this.addresses.warpRouter)) {
+      const collateralAccount = this.deriveNativeTokenCollateralAccount();
+      const balance = await this.getProvider().getBalance(collateralAccount);
+      // TODO: account for rent in https://github.com/hyperlane-xyz/hyperlane-monorepo/issues/4558
+      return BigInt(balance.toString());
+    }
     return this.wrappedNative.getBalance(owner);
   }