[Bug]: Schema Names Migration Failure

[wilwade]

What happened?

The migration pallets/schemas/src/migration/v3.rs did not apply correctly to mainnet.

This is because the feature flag frequency is not available to the schemas pallet.

Remediation:

1. Remove the prior schema pallet migrations, as they have been applied to all networks.
2. Add a new migration that does the following only on Mainnet:
   • [ ] Edits the dsnp.update to be schema id 5
   • [ ] Edits the dsnp.profile to be schema id 6
   • [ ] Adds dsnp.public-key-key-agreement as 7
   • [ ] Adds dsnp.public-follows as 8
   • [ ] Adds `dsnp.private-follows as 9
   • [ ] Adds `dsnp.private-connections as 10

Relevant log output

No response