Not all schemas are builded

### Package version

5.1.0

### Node version

v20.19.2

### Platform

macos

### What steps will reproduce the bug?

Build docs with openapi includer, use schemas like:

```yaml
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"properties": {
"code": {
"default": 200
},
"data": {
"properties": {
"delivery": {
"properties": {
# etc
```

### What is the expected behavior?

All schemas used on page are builded and linked

### What do you see instead?

Schemas are not builded correctrly, `type: object` is used instead.

### Additional information

_No response_