HASURA_GRAPHQL_ENABLED_LOG_TYPES does not cover event trigger logs

There is no way to disable logs for event triggers. This is causing the graphql-engine to log the entire row when an event is triggered.

This means it could be logging sensible data and huge amount of data.

It would be nice to have a flag to disable those logs in HASURA_GRAPHQL_ENABLED_LOG_TYPES.

Could be `event-log`?

No file, test, or entry point is named. Start by tracing HASURA_GRAPHQL_ENABLED_LOG_TYPES handling and the event-trigger logging path in graphql-engine; done when a dedicated log type can disable event-trigger row logging without affecting other log types.

Written by the indexing model from the issue text.