[Nara] Remove channel and video deletion by moderators mappings and CLI commands

[zeeshanakram3]

This PR addresses:

• 4740

• 4739

• Remove fixtures for above actions and fix integration tests

┆Issue is synchronized with this Asana task by Unito

[mnaamani]

Also this needs to be rebased onto nara branch

[zeeshanakram3]

I have:

• Rebased the PR on nara branch
• removed the deleted events (VideoDeletedByModerator & ChannelDeletedByModerator) events from runtime
• Updated the chain metadata (there is a new metadata file query-node/chain-metadata/2002.json)
• Reverted the mappings deletion change.
• Updated the @joystream/types package based on new chain-metadata.
• I have added a temporary tar dependency of the hydra-typegen fix to test the PR easily

[mnaamani]

Merged this work in https://github.com/Joystream/joystream/pull/4874