Add loop_controls feature to minijinja to handle {% break %}

[alvarobartt]

What does this PR do?

This PR adds the feature loop_controls to minijinja as per minijinja - optional features, as some models as e.g. CohereForAI/c4ai-command-r7b-12-2024 make use of the break statement within the inner loops in the template, which is not supported on minijinja by default.

As of minijinja's description of the loop_controls feature "enables the {% break %} and {% continue %} loop control flow tags."

Thanks to @Cyrilvallez for reporting internally!

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Who can review?

@OlivierDehaene OR @Narsil