[Refactor] [3/N] Move tool parser tests and run on CPU

[DarkLight1337]

Purpose

Follow-up to #30675 to reduce CI cost

Test Plan

Test Result

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Essential Elements of an Effective PR Description Checklist

• The purpose of the PR, such as "Fix some issue (link existing issues this PR will resolve)".
• The test plan, such as providing test command.
• The test results, such as pasting the results comparison before and after, or e2e results
• (Optional) The necessary documentation update, such as updating supported_models.md and examples for a new model.
• (Optional) Release notes update. If your change is user facing, please update the release notes draft in the Google Doc.

[chatgpt-codex-connector]

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[gemini-code-assist]

Code Review

This pull request aims to move tool parser tests to a CPU-only CI job to reduce costs. The changes involve renaming test files and updating CI configuration. However, there are several issues in the CI configuration files. The paths for the moved test files are incorrect, which will prevent these tests from running. Additionally, some pytest commands seem to be malformed, which could cause CI jobs to fail. I've provided specific comments and suggestions to fix these issues.

[DarkLight1337]

/gemini review

[gemini-code-assist]

Code Review

This pull request refactors the testing setup for tool parsers to reduce CI costs. The changes involve moving tool parser tests from tests/tool_use to a new tests/tool_parsers directory and configuring them to run on CPU within an existing test job. This correctly consolidates CPU-based tests and frees up GPU resources. The CI configuration files (.buildkite/*.yaml) are updated accordingly, removing the separate CPU test job for tool use and simplifying the GPU test command. The pytest.mark.cpu_test markers have been correctly removed from the moved test files. The changes are logical, consistent, and effectively achieve the goal of optimizing CI resource usage.

[chaunceyjiang]

Thanks~