fix: metrics did not include 4xx

[xianml]

What does this PR address?

metrics did not include 4xx like 429

Fixes #(issue)

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[xianml]

@frostming Do we still need change api-server and runner APP under src/bentoml/_internal/server/http_app.py?

[frostming]

I don't think so. BTW why the integration test if failing:

subprocess.CalledProcessError: Command '['/Users/runner/work/BentoML/BentoML/.nox/e2e-testing-3-11-suite-bento_new_sdk/bin/python', '/Users/runner/work/BentoML/BentoML/examples/quickstart/prepare_model.py']' returned non-zero exit status 2.

The error is weird

[xianml]

I don't think so. BTW why the integration test if failing:

subprocess.CalledProcessError: Command '['/Users/runner/work/BentoML/BentoML/.nox/e2e-testing-3-11-suite-bento_new_sdk/bin/python', '/Users/runner/work/BentoML/BentoML/examples/quickstart/prepare_model.py']' returned non-zero exit status 2.

The error is weird

fixed in #4758

[github-actions]

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