message: tools: Update cgltf to 1.3
  This is just to make sure that we use a point release instead of a
  random commit between releases.
diff: /**
  * cgltf - a single-file glTF 2.0 parser written in C99.
  *
  - * Version: 1.2
  + * Version: 1.3
  *
  * Website: https://github.com/jkuhlmann/cgltf
  *
  @@ -423,7 +423,7 @@ typedef struct cgltf_light {
  cgltf_float spot_outer_cone_angle;
  } cgltf_light;
  -typedef struct cgltf_node {
  +struct cgltf_node {
  char* name;
  cgltf_node* parent;
  cgltf_node** children;
  @@ -443,7 +443,7 @@ typedef struct cgltf_node {
  cgltf_float scale[3];
  cgltf_float matrix[16];
  cgltf_extras extras;
  -} cgltf_node;
  +};
  typedef struct cgltf_scene {
  char* name;
  