fix: Remove manual population of creator ID

[DafyddLlyr]

What's the problem?

• The /flows/:flowId/copy endpoint is broken - throwing a permission error due to a missing field creator_id
• All roles which write to this table have write permissions for this column

What's the cause?

When we added a column preset for creator_id (#3864) it removed the columns from the insert schema for the flows table.

The respective fields will also be removed from the generated GraphQL schema for that role.

Source: https://hasura.io/docs/2.0/auth/authorization/permissions/column-presets/

What's the solution?

• Let Hasura handle this and populate it from the JWT, remove our custom code for fetch the user ID from the JWT
• It's actually a pretty nice solution / pattern imho!
• I've checked for other references to creator_id and creatorId - this is the only one in this repo and planx-core

[RODO94]

I don't want to overcomplicate this but, would this be a good time to switch this to the CreateFlow mutation from planx-core so it matches the editor? @DafyddLlyr

[DafyddLlyr]

Yep, makes sense to standardise this I think and it could have avoided this issue.

As this is currently blocking work, I'd vote for moving this forward just now and getting to prod and picking up this refactor as a follow up?

[github-actions]

Removed vultr server and associated DNS entries

[RODO94]

Fixes the bug for me, thanks for picking this up!