feat: add --query flag to canister call command

[marc0olo]

Summary

• Adds --query flag to icp canister call for making query calls instead of update calls
• Query calls are faster (single replica, no consensus) but return uncertified responses
• When Candid metadata is available and the method is an update method, errors preemptively with a clear message instead of letting the replica return a cryptic "Canister has no query method" error
• --query conflicts with --proxy at the clap level (proxy calls are inherently update calls due to cycle forwarding)
• Default behavior is unchanged: all calls remain update calls unless --query is explicitly passed