fix: change denominator 3 to 4

Author: Vinit-Pandit

lib/node_modules/@stdlib/array/base/broadcasted-ternary4d/benchmark/benchmark.js

@@ -123,7 +123,7 @@ function main() {
 	max = 6; // 10^max
 
 	for (i = min; i <= max; i++) {
-		N = floor(pow(pow(10, i), 1.0 / 3.0));
+		N = floor(pow(pow(10, i), 1.0 / 4.0));
 		sh = [N, N, N, N];
 		f = createBenchmark(sh);
 		bench(pkg + '::equidimensional:size=' + numel(sh), f);