[v1.12.0] Adapt tests to new Meilisearch highlight behavior

[curquiza]

Related to meilisearch/integration-guides#307

Explanation of the feature

Related to this PR: meilisearch/meilisearch#4928

The above PR led to changes in highlight behavior (checked internally with the engine team, these are expected). We need to adapt the tests of instant-meilisearch

TODO

• Adapt the breaking test to the new Meilisearch behavior

⚠️ Make PRs pointing to bump-meilisearch-v1.12.0 and NOT main. Please do 1 PR for all of these changes, and not several.

[curquiza]

@Strift I merged #1341
but tests are still failing in #1339 Pre-Release Tests / instant-meilisearch end-to-end-tests
so I don't close this issue yet

[Strift]

Yes, I've requested assistance from @ManyTheFish to investigate why this test might fail. It's related to searching facet values, so these tests should not be failing as far as I understand.

[curquiza]

This test is now fixed with rc6 🎉