stargate: rename ibctestdata.spec.ts

And here's no testdata/ directory in this package,
only in cosmwasm-stargate, so delete that glob.

Author: dynst

packages/stargate/package.json

@@ -15,7 +15,7 @@
     "*.md",
     "!*.spec.*",
     "!*testutils.*",
-    "!**/testdata/"
+    "!*testdata.*"
   ],
   "repository": {
     "type": "git",

packages/stargate/src/modules/ibc/ibctestdata.spec.ts renamed to packages/stargate/src/modules/ibc/ibctestdata.ts

@@ -2,7 +2,7 @@ import { CometClient, connectComet } from "@cosmjs/tendermint-rpc";
 
 import { QueryClient } from "../../queryclient";
 import { simapp } from "../../testutils";
-import * as ibcTest from "./ibctestdata.spec";
+import * as ibcTest from "./ibctestdata";
 import { IbcExtension, setupIbcExtension } from "./queries";
 
 async function makeClientWithIbc(rpcUrl: string): Promise<[QueryClient & IbcExtension, CometClient]> {