bench: fix sample array

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
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    status: passed
  - task: lint_editorconfig
    status: passed
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    status: na
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    status: passed
---

Author: kgryte

lib/node_modules/@stdlib/array/base/nested2objects/benchmark/benchmark.js

@@ -36,7 +36,7 @@ bench( pkg+':size=100', function benchmark( b ) {
 	var v;
 
 	fields = [ 'x', 'y' ];
-	x = filled2d( 10, [ 10, 10 ] );
+	x = filled2d( 10, [ 50, 2 ] );
 
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {