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

[rautelaKamal]

Ref: #8647.

Description

What is the purpose of this pull request?

This pull request:

• Refactors the JavaScript benchmarks in @stdlib/blas/ext/base/dsumors to use string interpolation (@stdlib/string/format) for generating benchmark names instead of string concatenation, as outlined in the tracking issue #8647.

Related Issues

Does this pull request have any related issues?

This pull request has the following related issues:

• #8647

Questions

Any questions for reviewers of this pull request?

No.

Other

Any other information relevant to this pull request? This may include screenshots, references, and/or implementation notes.

No.

Checklist

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

• Read, understood, and followed the contributing guidelines

[stdlib-bot]

Hello! Thank you for your contribution to stdlib.

We noticed that the contributing guidelines acknowledgment is missing from your pull request. Here's what you need to do:

1. Please read our contributing guidelines.

2. Update your pull request description to include this checked box:

   - [x] Read, understood, and followed the [contributing guidelines](https://github.com/stdlib-js/stdlib/blob/develop/CONTRIBUTING.md)

This acknowledgment confirms that you've read the guidelines, which include:

• The developer's certificate of origin
• Your agreement to license your contributions under the project's terms

We can't review or accept contributions without this acknowledgment.

Thank you for your understanding and cooperation. We look forward to reviewing your contribution!

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
blas/ext/base/dsumors	$\color{green}384/384$ $\color{green}+100.00%$	$\color{green}27/27$ $\color{green}+100.00%$	$\color{green}4/4$ $\color{green}+100.00%$	$\color{green}384/384$ $\color{green}+100.00%$

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