fix: use infrahub image to run prefect server

[fatih-acar]

This will avoid incompatibility issues between the Prefect client used by Infrahub and the Prefect server.
This also avoid dirty workarounds in CI to make jobs work when we have a mismatch between the Prefect version in docker compose and the client used.

Prefect's web UI is also working using this method.

Next step would be to have our own entrypoint to autoconfigure Prefect according to Infrahub's settings.

[codspeed-hq]

CodSpeed Performance Report

Merging #5548 will not alter performance

_{Comparing fac-prefect-server-image (b1fefcb) with dga-20250119-prefect-3.1.13 (3f9d273)}

Summary

✅ 10 untouched benchmarks

[fatih-acar]

Note: doing this would add a dependency on Prefect's Python version support, e.g. if Prefect does not support 3.14 we wouldn't be able to upgrade Infrahub to use 3.14, etc.

[dgarros]

Note: doing this would add a dependency on Prefect's Python version support, e.g. if Prefect does not support 3.14 we wouldn't be able to upgrade Infrahub to use 3.14, etc.

I think this is already the case because we have it as a direct dependencies in python

[dgarros]

As a side note,
it looks like prefect doesn't support 3.13 yet because of pendulum doesn't support it
pydantic/pydantic-extra-types#239
python-pendulum/pendulum#844

Since we are also using pendulum directly, we need to look into this rather sooner than later

[ogenstad]

As a side note, it looks like prefect doesn't support 3.13 yet because of pendulum doesn't support it pydantic/pydantic-extra-types#239 python-pendulum/pendulum#844

Since we are also using pendulum directly, we need to look into this rather sooner than later

Hm, we are using 3.13 in the SDK. I wonder if we should just get rid of pendulum. We talked about it in the past and the project seems fairly dead.

[dgarros]

I think we should get rid of pendulum but not sure how ...
As far as I can tell, there isn't a good library available today that could easily replace it ... I looked at a few issues earlier today and the migration path isn't obvious to me yet

[aaazzam]

We're thinking through this problem, too.

We've identified https://github.com/ariebovenberg/whenever as a promising (albeit early) candidate. That said, since Prefect is >=3.9 we may just stoop to raw ZoneInfo (not sure we need a library for getting "now" in UTC).

[dgarros]

Thank you @aaazzam, whenever looks like a great alternative to pendulum