ci: run all APIs integration tests (#2646)

# What does this PR do?

We are now automatically building the list of integration test to run.
In that process, eval and files and being tested now.

This is pending https://github.com/meta-llama/llama-stack/pull/2628

Signed-off-by: Sébastien Han <seb@redhat.com>

tests/integration/fixtures/common.py

@@ -218,6 +218,7 @@ def llama_stack_client(request, provider_data):
         return LlamaStackClient(
             base_url=base_url,
             provider_data=provider_data,
+            timeout=int(os.environ.get("LLAMA_STACK_CLIENT_TIMEOUT", "30")),
         )
 
     # check if this looks like a URL using proper URL parsing