bench: update random value generation

[hrshya]

Resolves none .

Description

What is the purpose of this pull request?

This pull request:

• Refactors random number generation in JS benchmarks for the stats/base/dists/signrank/* packages.
• Replaces uniform() from @stdlib/random/array/uniform for cleaner and more consistent code.
• Moves the random number generation outside the benchmarking loops.
• Refactors to use string interpolation.

Related Issues

Does this pull request have any related issues?

This pull request:

• resolves no related issues.

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.

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[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
stats/base/dists/signrank/cdf	$\color{red}309/311$ $\color{green}+99.36%$	$\color{red}36/37$ $\color{green}+97.30%$	$\color{green}4/4$ $\color{green}+100.00%$	$\color{red}309/311$ $\color{green}+99.36%$
stats/base/dists/signrank/pdf	$\color{red}358/360$ $\color{green}+99.44%$	$\color{red}36/37$ $\color{green}+97.30%$	$\color{green}5/5$ $\color{green}+100.00%$	$\color{red}358/360$ $\color{green}+99.44%$
stats/base/dists/signrank/quantile	$\color{green}305/305$ $\color{green}+100.00%$	$\color{green}45/45$ $\color{green}+100.00%$	$\color{green}4/4$ $\color{green}+100.00%$	$\color{green}305/305$ $\color{green}+100.00%$

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

[stdlib-bot]

PR Commit Message

bench: update random value generation

PR-URL: https://github.com/stdlib-js/stdlib/pull/9976

Reviewed-by: Philipp Burckhardt <pburckhardt@outlook.com>

Please review the above commit message and make any necessary adjustments.