feat: allow disabling cosmovisor logs

[freak12techno]

Description

Closes: #15359

Introduces DAEMON_DISABLE_LOGS env variable for Cosmovisor, when set to true, Cosmovisor won't write any logs into stdout. That is useful when you need to run a subcommand that returns a valid JSON but Cosmovisor's logging makes it invalid.
Additionally, I removed the logic with always disabled logging in cosmovisor version --output json, as this is redundant and isn't as flexible as the DAEMON_DISABLE_LOGS approach.

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[julienrbrt]

tACK.

Thank you, @freak12techno, could you mention that in the README.md?