[INS-398] Added tests to ensure that custom endpoint configuration works in artifactory detectors

[MuneebUllahKhan222]

Description

This PR adds test coverage for both Artifactory detectors by introducing:

• 1 unit test
• 1 integration test

for each detector.

The tests explicitly configure detector endpoints using s.SetConfiguredEndpoints to ensure that:

• Detected secrets are validated against the intended configured endpoint

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Purpose

• Improves confidence in detector behavior
• Ensures that the custom endpoint configuration works as expected in artifactory detectors.

Checklist:

• Tests passing (make test-community)?
• Lint passing (make lint this requires golangci-lint)?

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Note

Low Risk
Low risk because changes are limited to new unit/integration tests validating endpoint configuration behavior; no production detector logic is modified.

Overview
Adds new unit and integration tests for artifactory and artifactoryreferencetoken detectors that explicitly set endpoints via SetConfiguredEndpoints and assert the configured endpoint is included in Scanner.Endpoints() and in emitted Result.RawV2.

Integration tests run FromData with verification enabled and validate the detector uses the configured endpoint when forming the secret+endpoint pairing (including trimming https:// for reference tokens).

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