fix(agoric-cli): wrong URL in agops oracle setPrice, find-continuing-id

[dckc]

refs:

• Unable to create a vault (Emerynet RC2 smoke-testing) #10592
• use readPublished for types in agoric-cli #10450

Description

It looks like #10450 changed the URL used to get oracle operator wallet info from

https://emerynet.rpc.agoric.net:443/abci_query?path=%22/custom/vstorage/data/published.wallet.agoric1ldmtatp24qlllgxmrsjzcpe20fvlkp448zcuce.current%22&height=0

to

https://emerynet.rpc.agoric.net:443/abci_query?path=%22/custom/vstorage/data/wallet.agoric1ldmtatp24qlllgxmrsjzcpe20fvlkp448zcuce.current%22&height=0

This PR uses readPublished consistently in order to restore the published. prefix.

Security / Scaling / Documentation Considerations

none

Testing Considerations

I'm a little surprised that we don't have z:acceptance tests that rely on this testing tool.

Upgrade Considerations

This is client-side only code.

[dckc]

I'm not sure what to make of this acceptance test error... flake?

    'Error: error in json rpc client, with http response metadata: (Status: 200 OK, Protocol HTTP/1.1). RPC error -32603 - Internal error: timed out waiting for tx to be included in a block\n'