Migrate SearchesAdapter to OS java client

[moesterheld]

Description

Migrates the SearchesAdapter to use the OS java client

Also moves duplicated code in Scroll and Pagination that was needed here also to SearchRequestFactory

/nocl internal

Motivation and Context

closes #25100

How Has This Been Tested?

existing tests, locally

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Refactoring (non-breaking change)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have requested a documentation update.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.