chore: fix JavaScript lint errors (issue #7440)

[dhernandeez13]

This PR fixes the JavaScript linting error related to the redeclaration of TransformStream in lib/node_modules/@stdlib/bench/harness/lib/main.js.

The local variable TransformStream was renamed to StdlibTransformStream to avoid redeclaration lint failures due to name conflicts with the global TransformStream object.

JSDoc comments were intentionally left unchanged to preserve accurate type information.

Description

This pull request:

• Fixes a variable naming conflict with TransformStream that triggered a linting error.
• Renames the local TransformStream import to StdlibTransformStream.
• Ensures that the benchmark module complies with the project's ESLint rules.

Related Issues

• resolves Fix JavaScript lint errors #7440

Questions

No.

Other

No additional notes.

Checklist

• Read, understood, and followed the contributing guidelines.

---

@stdlib-js/reviewers

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Coverage Report

Package	Statements	Branches	Functions	Lines
bench/harness	$\color{green}513/513$ $\color{green}+100.00\%$	$\color{green}60/60$ $\color{green}+100.00\%$	$\color{green}9/9$ $\color{green}+100.00\%$	$\color{green}513/513$ $\color{green}+100.00\%$

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

[kgryte]

In this case, the relevant lint rule should just be disabled. No need to rename the variable.