Add indices to MatchRange (v1.12 feature)

[LukasKalbertodt]

See meilisearch/meilisearch#5005

I already tested this with my production project, where it works as expected.

Unfortunately, I believe this is a breaking change. But shouldn't be a big problem, since this is still pre 1.0.

PR checklist

Please check if your PR fulfills the following requirements:

• Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
• Have you read the contributing guidelines?
• Have you made sure that the title is accurate and descriptive of the changes?