chore: fix EditorConfig lint errors (issue #10943)

Replace space-based indentation with tabs in example file to comply with
project EditorConfig standards. All indentation now uses tabs for consistency
with stdlib coding conventions.

Fixes #10943

Co-Authored-By: Sumithra Raju <sumithravenkataramanan@gmail.com>

Author: Sumithraju

lib/node_modules/@stdlib/stats/wilcoxon/examples/index.js

@@ -38,14 +38,14 @@ for ( i = 0; i < arr.length; i++ ) {
 out = wilcoxon( arr );
 console.log( out.print() );
 /* e.g., =>
-    One-Sample Wilcoxon signed rank test
+	One-Sample Wilcoxon signed rank test
 
-    Alternative hypothesis: Median of `x` is not equal to 0
+	Alternative hypothesis: Median of `x` is not equal to 0
 
-        pValue: 0.7714
-        statistic: 2438.5
+		pValue: 0.7714
+		statistic: 2438.5
 
-    Test Decision: Fail to reject null in favor of alternative at 5% significance level
+	Test Decision: Fail to reject null in favor of alternative at 5% significance level
 */
 
 // Test whether distribution has median of five:
@@ -54,12 +54,12 @@ out = wilcoxon( arr, {
 });
 console.log( out.print() );
 /* e.g, =>
-    One-Sample Wilcoxon signed rank test
+	One-Sample Wilcoxon signed rank test
 
-    Alternative hypothesis: Median of `x` is not equal to 5
+	Alternative hypothesis: Median of `x` is not equal to 5
 
-        pValue: 0.0529
-        statistic: 1961.5
+		pValue: 0.0529
+		statistic: 1961.5
 
-    Test Decision: Fail to reject null in favor of alternative at 5% significance level
+	Test Decision: Fail to reject null in favor of alternative at 5% significance level
 */