bench: refactor to use string interpolation in blas/ext/base/zsum

[parthodas23]

Progresses #8647.

Description

What is the purpose of this pull request?

This pull request:

• bench: refactor to use string interpolation in blas-ext-base-zsum-benchmark

Related Issues

Does this pull request have any related issues?

This pull request has the following related issues:

• [RFC]: use string interpolation in JavaScript benchmarks for the benchmark name (tracking issue) #8647

Questions

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No.

Other

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No.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

AI Assistance

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• No

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• Code generation (e.g., when writing an implementation or fixing a bug)
• Test/benchmark generation
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• Research and understanding

Disclosure

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{{TODO: add disclosure if applicable}}

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