Add prewarm option to APIs

[chrisbbreuer]

Clear and concise description of the problem

The problem is cold starts. Prewarming rids of the problem by keeping x amount of serverless containers "warm".

Suggested solution

• [ ] Add warm option to ./config/api.ts

Alternative

No response

Additional context

No response

Validations

• [X] Follow our Code of Conduct
• [X] Read the Contributing Guide
• [X] Check that there isn't already an issue that requests the same feature (to avoid creating a duplicate)