fix(tests): align openresponses test model name with GGUF-derived naming (#10589)

[localai-bot]

Why master is red

The tests workflow has failed on every master push since 1a4f68ed4 (it was green at the immediately preceding 28d739774). The breaking change is #10589 — fix(import): derive model name from selected GGUF for repo-root URIs.

Five specs in the Open Responses API suite (core/http/openresponses_test.go) fail because POST /v1/responses returns 404:

• HTTP Protocol Compliance → MUST accept application/json Content-Type
• Content Types → MUST support input_text content
• Content Types → MUST support input_image content with URL
• Content Types → MUST support input_image content with base64
• Previous Response ID → should return error for invalid previous_response_id

Root cause

The test loads a model from https://huggingface.co/unsloth/Qwen3-VL-2B-Instruct-GGUF (a repo-root URI) and then addresses it with the hard-coded name Qwen3-VL-2B-Instruct-GGUF. #10589 intentionally changed repo-root imports to name the model after the selected GGUF file rather than the repository. With the default quant (q4_k_m), the importer now registers the model as Qwen3-VL-2B-Instruct-Q4_K_M (confirmed in the CI logs). The old name no longer resolves, so the model-resolution middleware 404s — outside the test's accepted 200/400/500 set.

#10589 updated its own importers_test.go but missed this unrelated integration test.

Fix

The behaviour change is correct; only the stale test constant needed updating. One line:

const testModel = "Qwen3-VL-2B-Instruct-Q4_K_M"   // was "Qwen3-VL-2B-Instruct-GGUF"

testModel is referenced everywhere in the file via the constant; the WithModelsURL source repo is unchanged (only the registered name changed).