Fix JavaScript lint errors

## JavaScript Linting Failures

Linting failures were detected in the automated JavaScript lint workflow run.

### Workflow Details

- Run: https://github.com/stdlib-js/stdlib/actions/runs/34911553402
- Type: JavaScript Linting
- Date: 2026-09-15 00:10:36 UTC

### Error Details
```
make[1]: Entering directory '/home/runner/work/stdlib/stdlib'

Linting file: lib/node_modules/@stdlib/math/strided/special/sabs/test/test.sabs.native.js

Linting file: lib/node_modules/@stdlib/blas/ext/base/ndarray/daxpb/test/test.js

Linting file: lib/node_modules/@stdlib/blas/ext/base/gfill-equal/test/test.main.js

Linting file: lib/node_modules/@stdlib/_tools/eslint/rules/jsdoc-no-unused-definitions/test/test.js

Linting file: lib/node_modules/@stdlib/stats/base/dists/rayleigh/logpdf/test/test.logpdf.js

Linting file: lib/node_modules/@stdlib/utils/inherited-nonenumerable-property-names/test/test.js

Linting file: lib/node_modules/@stdlib/stats/base/ndarray/min/test/test.js

Linting file: lib/node_modules/@stdlib/_tools/eslint/rules/jsdoc-tag-names/test/test.js

Linting file: lib/node_modules/@stdlib/stats/strided/nanstdev/test/test.js

Linting file: lib/node_modules/@stdlib/constants/float32/fourth-pi/test/test.js

Linting file: lib/node_modules/@stdlib/number/uint64/base/xor/test/test.assign.js

Linting file: lib/node_modules/@stdlib/_tools/github/star-repo/test/test.options.js

Linting file: lib/node_modules/@stdlib/lapack/base/slacpy/test/test.slacpy.js

Linting file: lib/node_modules/@stdlib/blas/ext/base/dnannsumkbn2/test/test.dnannsumkbn2.js

Linting file: lib/node_modules/@stdlib/math/base/special/kernel-log1pf/test/test.native.js

Linting file: lib/node_modules/@stdlib/math/base/special/log/test/test.native.js

Linting file: lib/node_modules/@stdlib/stats/strided/nanmidrange-by/test/test.js

Linting file: lib/node_modules/@stdlib/math/base/special/powf/test/test.x_is_zero.js

Linting file: lib/node_modules/@stdlib/stats/strided/mediansorted/test/test.js

Linting file: lib/node_modules/@stdlib/symbol/to-primitive/test/test.js

/home/runner/work/stdlib/stdlib/lib/node_modules/@stdlib/symbol/to-primitive/test/test.js
50:22 error The 'Symbol.toPrimitive' is still an experimental feature and is not supported until Node.js 6.0.0. The configured version range is '>=0.12.18' n/no-unsupported-features/es-builtins

✖ 1 problem (1 error, 0 warnings)

Linting failed.
make[1]: *** [/home/runner/work/stdlib/stdlib/tools/make/lib/lint/javascript/eslint.mk:261: eslint-files] Error 1
make[1]: Leaving directory '/home/runner/work/stdlib/stdlib'
make: *** [/home/runner/work/stdlib/stdlib/tools/make/lib/lint/javascript/Makefile:158: lint-javascript-files] Error 2
```

### Pull Request Instructions

- Please use the following PR title format:
"chore: fix JavaScript lint errors (issue #)".
- Reference this issue in the "Related Issues" section of the PR body as "resolves #".

Start with lib/node_modules/@stdlib/symbol/to-primitive/test/test.js at line 50 and inspect the Symbol.toPrimitive usage against the configured Node.js support range. Run the JavaScript lint target from tools/make/lib/lint/javascript/Makefile, and consider the issue done when the reported file passes lint and the workflow no longer reports errors.

索引モデルが issue の本文から書いたものです。