chore(ci): reduce CI test timeout to surface failures sooner

[key4ng]

Description

Problem

Solution

Changes

Test Plan

Checklist

• cargo +nightly fmt passes
• cargo clippy --all-targets --all-features -- -D warnings passes
• (Optional) Documentation updated

Summary by CodeRabbit

• Chores
  • Optimized CI/CD workflow test timeout configurations to improve pipeline efficiency.

[gemini-code-assist]

Note

Gemini is unable to generate a summary for this pull request due to the file types involved not being currently supported.

[coderabbitai]

📝 Walkthrough

Walkthrough

This pull request reduces timeout durations across multiple test jobs in a GitHub Actions CI/CD workflow. Timeout values in the gateway-e2e matrix and the final gateway finish job are decreased to shorten overall test execution times.

Changes

Cohort / File(s)	Summary
CI/CD Timeout Configuration .github/workflows/pr-test-rust.yml	Reduced timeout-minutes across gateway-e2e matrix tests (benchmarks: 32→20, responses: 45→25, e2e: 45→20, chat-completions variants: 45→20/25, vllm-pd: 45→15, chat-completions-trtllm: 90→25) and final gateway finish job (45→20).

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 A swift little hop through the workflow so fine,
Where timeouts grow shorter, like carrots in line,
No more waiting endlessly for tests to complete,
Our CI now dances with speedier feet! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately reflects the main change: reducing CI test timeouts across multiple gateway-e2e test configurations to surface failures sooner.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch ci-timeout

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