Match faceset type to intersect res param type in nativeccd.

PiperOrigin-RevId: 730470904
Change-Id: Id7b3712c10d5ec871e2d272036e4e87c1e8620e0

Author: kbayes

src/engine/engine_collision_gjk.c

@@ -1719,7 +1719,7 @@ static int meshNormals(mjtNum* res, int resind[3], int dim, mjCCDObj* obj,
     int v3_adr = m->mesh_polymapadr[vertadr + v3];
     int v3_num = m->mesh_polymapnum[vertadr + v3];
 
-    int edgeset[2], faceset[1];
+    int edgeset[2], faceset[2];
     int n = intersect(edgeset, m->mesh_polymap + v1_adr, m->mesh_polymap + v2_adr, v1_num, v2_num);
     if (n == 0) return 0;
     n = intersect(faceset, edgeset, m->mesh_polymap + v3_adr, n, v3_num);