Enhance ark test workflow

[chensuyue]

Description

Enhance ark test workflow.

Type of Change

Bug fix

Related Issues

Fixes or relates to #

Checklist Before Submitting

• My code has been tested locally.
• Documentation has been updated as needed.
• New or updated tests are included where applicable.
• The CUDA CI has passed. You can trigger it by commenting /azp run Unit-Test-CUDA-AutoRound.

[Copilot]

Pull request overview

This PR updates the Azure Pipelines configuration to make ARK-related unit test environments more reliable and to refine when the ARK wheel publishing pipeline runs.

Changes:

• Tighten UT scripts by enabling set -eo pipefail and adjusting dependency installation logic (including allowing pre-release installs of auto-round-lib from TestPyPI).
• Remove an explicit publishToTestPyPI: false override where the template already defaults to false.
• Adjust build-auto-round-lib.yml triggers to run only on main ARK source changes and disable PR triggering.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
.azure-pipelines/unit-test.yml	Removes redundant publishToTestPyPI: false since the template default is already false.
.azure-pipelines/template/ut-template.yml	Improves failure handling (pipefail) and refines/install-path logic for ARK deps (including --pre for TestPyPI installs).
.azure-pipelines/build-auto-round-lib.yml	Narrows trigger paths to ARK sources and disables PR triggers.