## About the changes
Migrations for:
- Adds column is_system to users
- Inserts unleash_system_user id -1337 to users
includes `is_system: false` in the activeUsers and activeAccounts where filter
Tested by running:
`
select * into users_pre_check from users where id > -1;
delete from users where id > -1;
`
before starting unleash, then inspecting users table after unleash has
started and verifying that an 'admin' user has been created.
---------
Co-authored-by: Christopher Kolstad <chriswk@getunleash.ai>
