EDM-346/enable gids flight school mocks

[jefftmarks]

Summary

• *This work is behind a feature toggle (flipper): NO
• (Summarize the changes that have been made to the platform): App and betamocks settings updated to enable mock data for GI::SearchClient endpoints for comparison tool. GI::SearchClient and GI::SearchConfiguration updated to only use mocks on a request to institution_programs search endpoint when a query parameter of type == 'FLGT' is present
• (If bug, how to reproduce)
• (What is the solution, why is this the solution?) Temporarily solution to test new GI Comparison Tool feature until flight program data is made available via WEAMS, which is being worked in parallel. There didn't appear to be a way in betamocks settings to only mock responses if a specific query parameter is passed in, while letting all other requests go through. So some additional logic was added to search client and search configuration's use_mocks?
• (Which team do you work for, does your team own the maintenance of this component?) Education Data Migration (EDM), yes
• (If introducing a flipper, what is the success criteria being targeted?)

Related issue(s)

• https://github.com/department-of-veterans-affairs/vets-api-mockdata/pull/563
• https://github.com/department-of-veterans-affairs/vsp-infra-application-manifests/pull/3291
• https://jira.devops.va.gov/browse/EDM-346

What areas of the site does it impact?

GI Bill Comparison Tool

Acceptance criteria

• I fixed|updated|added unit tests and integration tests for each feature (if applicable).
• No error nor warning in the console.
• Events are being sent to the appropriate logging solution
• Documentation has been updated (link to documentation)
• No sensitive information (i.e. PII/credentials/internal URLs/etc.) is captured in logging, hardcoded, or specs
• Feature/bug has a monitor built into Datadog (if applicable)
• If app impacted requires authentication, did you login to a local build and verify all authenticated routes work as expected
• I added a screenshot of the developed feature

[github-actions]

Backend-review-group approval confirmed.

[binq]

LGTM