feat: add agent config for Osmosis Mainnet

[byeongsu-hong]

Description

• Added agent config description for Osmosis Mainnet
• Updated Osmosis' binary version to v25

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Latest commit: bdb320a8c7d4f06f999bf8aabb172e011b3e0bd4

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[tkporter]

Thanks @byeongsu-hong -- I fixed the failing test in https://github.com/hyperlane-xyz/hyperlane-monorepo/pull/3825 (now merged w/ the changes in here), going to close this in favor of that