fix bench alpha value

Author: MeKaustubh07

lib/node_modules/@stdlib/blas/base/ndarray/cscal/benchmark/benchmark.js

@@ -59,7 +59,7 @@ function createBenchmark( len ) {
 	});
 	x = new Complex64Vector( xbuf.buffer );
 
-	alpha = scalar2ndarray( new Complex64( 2.0, 0.0 ), options );
+	alpha = scalar2ndarray( new Complex64( 0.8, 0.6 ), options );
 
 	return benchmark;