build: localnet for Apple Silicon

[inon-man]

Summary of changes

make localnet-start script allows you to start up 4 nodes locally using Docker. This PR addresses an issue with that script not working on Apple Silcon machines.

Report of required housekeeping

• Github issue OR spec proposal link
• Wrote tests
• Updated API documentation (client/lcd/swagger-ui/swagger.yaml)
• Added a relevant changelog entry: clog add [section] [stanza] [message]

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(FOR ADMIN) Before merging

• Added appropriate labels to PR
• Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)
• Confirm added tests are consistent with the intended behavior of changes
• Ensure all tests pass

[ZaradarBH]

LGTM :)