add hybrid_parameters to search

[vicilliar]

• Please check if the PR fulfills these requirements

• [x] The commit message follows our guidelines

• [ ] Tests for the changes have been added (for bug fixes/features)

• [ ] Docs have been added / updated (for bug fixes / features)

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...) Feature

• What is the current behavior? (You can also link to an open issue here) No hybrid search parameters

• What is the new behavior (if this is a feature change)? New parameter: hybrid_parameters added to search endpoint to enable hybrid search

• Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?) no

• Other information: