chore: fix EditorConfig lint errors (issue #6885)

[LalitNarayanYadav]

Resolves #6885

Description

• Replaced tab characters with spaces in lib/node_modules/@stdlib/complex/dtypes/lib/dtypes.json to comply with the project's indentation rules.

Checklist

• Read, understood, and followed the contributing guidelines.

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@stdlib-js/reviewers

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
complex/dtypes	$\color{green}84/84$ $\color{green}+100.00\%$	$\color{green}3/3$ $\color{green}+100.00\%$	$\color{green}1/1$ $\color{green}+100.00\%$	$\color{green}84/84$ $\color{green}+100.00\%$

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