chore: fix C lint errors

PR-URL: #9571
Closes: #9570
Reviewed-by: Athan Reines <kgryte@gmail.com>

Author: GeoDaoyu

lib/node_modules/@stdlib/ndarray/base/napi/unary/src/main.c

@@ -80,7 +80,7 @@ void stdlib_ndarray_napi_unary( napi_env env, napi_callback_info info, const str
 		return;
 	}
 	// Extract the ndarray data types:
-	int32_t types[] = {
+	const int32_t types[] = {
 		stdlib_ndarray_dtype( arrays[ 0 ] ),
 		stdlib_ndarray_dtype( arrays[ 1 ] )
 	};

lib/node_modules/@stdlib/stats/strided/sstdevwd/benchmark/c/benchmark.length.c

@@ -107,6 +107,7 @@ static double benchmark( int iterations, int len ) {
 	v = 0.0f;
 	t = tic();
 	for ( i = 0; i < iterations; i++ ) {
+		// cppcheck-suppress uninitvar
 		v = stdlib_strided_sstdevwd( len, 1.0f, x, 1 );
 		if ( v != v ) {
 			printf( "should not return NaN\n" );