fix: allow extended types

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

Author: kgryte

lib/node_modules/@stdlib/stats/strided/dztest/docs/types/index.d.ts

@@ -142,7 +142,7 @@ interface Routine {
 	* var bool = ( out === results );
 	* // returns true
 	*/
-	( N: number, alternative: Alternative, alpha: number, mu: number, sigma: number, x: Float64Array, strideX: number, out: BaseResults ): Results;
+	<T extends BaseResults>( N: number, alternative: Alternative, alpha: number, mu: number, sigma: number, x: Float64Array, strideX: number, out: T ): Results;
 
 	/**
 	* Computes a one-sample Z-test for a double-precision floating-point strided array using alternative indexing semantics.
@@ -171,7 +171,7 @@ interface Routine {
 	* var bool = ( out === results );
 	* // returns true
 	*/
-	ndarray( N: number, alternative: Alternative, alpha: number, mu: number, sigma: number, x: Float64Array, strideX: number, offsetX: number, out: BaseResults ): Results;
+	ndarray<T extends BaseResults>( N: number, alternative: Alternative, alpha: number, mu: number, sigma: number, x: Float64Array, strideX: number, offsetX: number, out: T ): Results;
 }
 
 /**