feat: implemented flag conflicts in deploy.ts

[dylanspyer]

Implemented feature from commander to prevent
mutually exclusive flags from being run in the same command.

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Summary

Fixes #3978

Before the change to commander, the CLI used oclif for defining commands and specifying flags. oclif allowed for mutually exclusive flags when running commands—for example, when running deploy with --prod, the user shouldn't also be able to use --prodIfUnlocked. Initially, commander did not allow for mutually exclusive flags, but later implemented support for it. This PR re-implements the feature as it existed prior to moving to commander. We identified the conflicting flags by pulling in a commit that is chronologically prior to the issue this PR addresses.

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