cosmos/keyring hasn't pulled upstream changes from 99designs/keyring yet
and the latest release of 99designs/keyring (1.2.1) appears to contain
a fix for MacOS warnings: 99designs/keyring#107

Links
- https://github.com/cosmos/keyring/tags
- https://github.com/99designs/keyring/releases/tag/v1.2.1

`make test` passes after this change and it looks like other Cosmos
chains don't need this replace:
- https://github.com/osmosis-labs/osmosis/blob/main/go.mod#L274-L285=
- https://github.com/CosmosContracts/juno/blob/main/go.mod#L178-L182=

Does anyone know if it's still necessary? I couldn't find the justification in
celestiaorg#127 which added it.