fix: HEXA-1152 Install polars for Apple Chips

[YolanFery]

When running the project on Apple Chip (M4), I get the following warning :

/usr/local/lib/python3.12/site-packages/polars/_cpu_check.py:258: RuntimeWarning: Missing required CPU features.

The following required CPU features were not detected:
    avx, avx2, fma, bmi1, bmi2, lzcnt, movbe
Continuing to use this version of Polars on this processor will likely result in a crash.
Install the `polars-lts-cpu` package instead of `polars` to run Polars with better compatibility.

Hint: If you are on an Apple ARM machine (e.g. M1) this is likely due to running Python under Rosetta.
It is recommended to install a native version of Python that does not run under Rosetta x86-64 emulation.

If you believe this warning to be a false positive, you can set the `POLARS_SKIP_CPU_CHECK` environment variable to bypass this check.

  warnings.warn(
/code/docker-entrypoint.sh: line 33:    19 Illegal instruction     python manage.py migrate

Changes

• Conditionally install polars-lts-cpu

How/what to test

The project can be run on Apple Chips

[qgerome]

Instead of passing a variable to the build, have you investigated the TARGETPLATFORM variable that should be passed ?

[YolanFery]

Instead of passing a variable to the build, have you investigated the TARGETPLATFORM variable that should be passed ?

Indeed it's better to use built-in args, used the BUILDARCH to detect the developper platform

[qgerome]

If we remove the platform: linux/amd64 line in the docker-compose.yaml do we still need this fix for openhexa-app ?

[YolanFery]

Closing in favor of #894