fix: update includes from pow.h to pow_int.h in examples and benchmark

Author: Md-Zaid45

lib/node_modules/@stdlib/math/base/special/fast/pow-int/benchmark/c/native/benchmark.c

@@ -16,7 +16,7 @@
 * limitations under the License.
 */
 
-#include "stdlib/math/base/special/fast/pow.h"
+#include "stdlib/math/base/special/fast/pow_int.h"
 #include <stdlib.h>
 #include <stdio.h>
 #include <math.h>

lib/node_modules/@stdlib/math/base/special/fast/pow-int/examples/c/example.c

@@ -16,7 +16,7 @@
 * limitations under the License.
 */
 
-#include "stdlib/math/base/special/fast/pow.h"
+#include "stdlib/math/base/special/fast/pow_int.h"
 #include <stdio.h>
 #include <stdint.h>