fix: restore correct includes in main.c - use pow/trunc instead of powf/truncf

Author: Amansingh0807

lib/node_modules/@stdlib/math/base/special/truncbf/src/main.c

@@ -1,7 +1,7 @@
 /**
 * @license Apache-2.0
 *
-* Copyright (c) 2025 The Stdlib Authors.
+* Copyright (c) 2024 The Stdlib Authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -50,4 +50,4 @@ float stdlib_base_truncbf( const float x, const int32_t n, const int32_t b ) {
 
     // Multiply by scale, truncate (using truncf), then divide by scale
     return stdlib_base_truncf( x * s ) / s;
-}
+}