fixup! feat(runner): remove agoric-cli dep for starting client

Co-authored-by: Michael FIG <mfig@agoric.com>

runner/lib/tasks/testnet.js

@@ -83,7 +83,7 @@ export const makeTasks = ({
     }
 
     // Don't pipe output to console, it's too noisy
-    const statusCp = spawn(sdkBinaries.cosmosChain, args, {
+    const statusCp = spawn(sdkBinaries.cosmosHelper, args, {
       stdio: ['ignore', 'pipe', 'pipe'],
     });