chore(x/group): update supported flags (backport #22229)

[mergify]

Description

Closes: #22220

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Summary by CodeRabbit

• New Features

  • Introduced new CLI commands for creating and updating groups and group policies.
  • Enhanced proposal submission command with improved execution options.

• Bug Fixes

  • Improved error handling for various command scenarios.

• Documentation

  • Updated command descriptions for clarity and usability.

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This is an automatic backport of pull request #22229 done by [Mergify](https://mergify.com).

[julienrbrt]

We probably won't tag 0.47 again, let's skip