Add support for SWE-Multilingual Gym

[roclark]

Added logic to be able to run SWE-Multilingual with NeMo-Gym.

Summary of PR

Added support for the SWE-Multilingual dataset

Change Type

• Other (dependency update, docs, typo fixes, etc.)

Checklist

• I have read and reviewed the code and I understand what the code is doing.
• I have tested the code to the best of my ability and ensured it works as expected.

Fixes

N/A

Release Notes

• Include this change in the Release Notes.

Added support for the SWE-Multilingual dataset