chore: fix C lint errors

PR-URL: #7562 Closes: #7561 Reviewed-by: Athan Reines <kgryte@gmail.com>

Author: GeoDaoyu

lib/node_modules/@stdlib/math/strided/special/dsqrt/benchmark/c/benchmark.length.c

@@ -125,6 +125,7 @@ static double benchmark( int iterations, int len ) {
 }
 t = tic();
 for ( i = 0; i < iterations; i++ ) {
+// cppcheck-suppress uninitvar
 stdlib_strided_dsqrt( len, x, 1, y, 1 );
 if ( y[ 0 ] != y[ 0 ] ) {
 printf( "should not return NaN\n" );