[cli-flag] Add support for --dry-run and --prune flags for 'flowpipe mod'

[vkumbha]

cli version: Flowpipe v0.1.0-beta.202312011224

As per the documentation https://flowpipe-io-git-main-turbot.vercel.app/docs/reference/cli/mod

Flag	Description
--dry-run	Show which mods would be installed/updated/uninstalled without modifying them (default false).
--prune	Remove unused mods and dependencies when doing mod update and mod install (default true).

But looks like it is not implemented yet.

1. --dry-run: Error: unknown flag: --dry-run
2. --prune: Error: unknown flag: --prune

[github-actions[bot]]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 30 days.

[github-actions[bot]]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 30 days.

[github-actions[bot]]

This issue was closed because it has been stalled for 90 days with no activity.