[DOC]Fix incorrect query samples in quantization page

[Arukris]

What do you want to do?
Fixing the incorrect query samples in the quantization page https://github.com/opensearch-project/documentation-website/blob/main/_search-plugins/knn/knn-vector-quantization.md

• Request a change to existing documentation
• Add new documentation
• Report a technical problem with the documentation
• Other

Tell us about your request. Provide a summary of the request.

Version: List the OpenSearch version to which this issue applies, e.g. 2.14, 2.12--2.14, or all.
2.17

What other resources are available? Provide links to related issues, POCs, steps for testing, etc.

[Naarcha-AWS]

Fixd by #9066