Fix alembic migration error

[Valera56pub]

Guideline

1. Carefully read the issue description before applying to ensure you have all the necessary information to start working on it.
2. Write a brief description of how you will approach the task (without using ChatGPT).
3. Add your Telegram handler in your application (e.g., in OnlyDust or similar)
4. Write ETA in your application

What should I do if I have a problem

1. Try to google it before asking. Googling is taking major part of dev work
2. If you couldn't find answer your question with Google, text your question to dev group with your question.
3. Do not send DM to maintainer, it would be better and faster to ask other contributors in chat

How to prepare PR

1. Check if your code smell good
2. Add close # to link your issue with your PR
3. Do not commit changes which is not related to your task
4. Check after you created PR, if you committed everything.

Task description

1. Run docker compose -f devops/dev/docker-compose.data-handler.yaml up --build
2. The bckend-1 has an error. Fix it:

3. Make sure you haven't broken other DevOps

[DavidIfebueme]

hi
can i work on this

tg: cypheron
eta: 45 mins

[djeck1432]

@DavidIfebueme Any updates?

[DavidIfebueme]

hi @djeck1432

not sure why i didnt get the notification for this.
apologies. you would see a pr for this and #609 in an hour or two.

thanks

[djeck1432]

@DavidIfebueme Can't see any PR after 2 days, sorry, unassigned

[iamnovichek]

@djeck1432 can I take this task?