chore: fix JavaScript lint errors (issue #8563)

[cnaples79]

resolves #8563

Fixed lint error in lib/node_modules/@stdlib/ndarray/for-each/examples/index.js by changing the last require statement from an absolute package path to a relative path, as required by the stdlib/require-last-path-relative rule.

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Coverage Report

Package	Statements	Branches	Functions	Lines
ndarray/for-each	$\color{green}123/123$ $color{green}+100.00%$	$\color{green}7/7$ $color{green}+100.00%$	$\color{green}1/1$ $color{green}+100.00%$	$\color{green}123/123$ $color{green}+100.00%$

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