fix(cli): settings lost their memoized values

[saeta-eth]

We need to memoize/cache the settings once they're used. In many parts of the code, we call resolveCliSettings without arguments, expecting it to return the memoized value. However, this isn't happening, and as a result, we're using incorrect settings. I've detected this issue in the decode command, but I'm fairly certain it's occurring throughout the project.

For instance, cannon decode synthetix-omnibus:3.3.4@main 0x243fc3d98160ae6ec9f764dd688cbc4c99d29f30d5e28ebefdc4968a45371ce3 --rpc-url https://mainnet.gateway.tenderly.co is not using the RPC url and instead its using the default Viem values.

Closes https://linear.app/usecannon/issue/CAN-515/settings-lost-their-memoized-values

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