bench: refactor to use dynamic memory allocation in blas/ext/base/drrss

[thzthix]

Progresses #8643 .

Description

What is the purpose of this pull request?

This pull request:

• This PR refactors C benchmarks in blas/ext/base/drrss to use dynamic memory allocation instead of static allocation for large arrays, following the guidance in [RFC]: replace static memory allocation of large arrays in C benchmarks with dynamic memory allocation (tracking issue) #8643.

Related Issues

Does this pull request have any related issues?

This pull request has the following related issues:

• [RFC]: replace static memory allocation of large arrays in C benchmarks with dynamic memory allocation (tracking issue) #8643 .

Questions

Any questions for reviewers of this pull request?

No.

Other

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Changes

• Replaced double x[len] with double *x = malloc(len * sizeof(double))
• Replaced double y[len] with double *y = malloc(len * sizeof(double))
• Added free(x) and free(y) calls after benchmark execution
• Applied changes to both benchmark1 and benchmark2 functions

Checklist

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

• Read, understood, and followed the contributing guidelines.

AI Assistance

When authoring the changes proposed in this PR, did you use any kind of AI assistance?

• Yes
• No

If you answered "yes" above, how did you use AI assistance?

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

Disclosure

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{{TODO: add disclosure if applicable}}

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@stdlib-js/reviewers

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Coverage Report

Package	Statements	Branches	Functions	Lines
blas/ext/base/drrss	$\color{red}448/450$ $\color{green}+99.56%$	$\color{red}33/34$ $\color{green}+97.06%$	$\color{green}4/4$ $\color{green}+100.00%$	$\color{red}448/450$ $\color{green}+99.56%$

The above coverage report was generated for the changes in this PR.

[stdlib-bot]

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[kgryte]

LGTM