[Bug] xAxis.axisLabel.color Contrary to expectations

### Version

6.0.0

### Link to Minimal Reproduction

https://echarts.apache.org/examples/zh/editor.html?c=line-simple&code=bU89D4IwFNz9FS9x6MJA-dJgHFycdMLEgTA00GgT0pJSDI3hv_tawDi43PW9Xu-uqjNCSTjCewMwnkbR5_4IYGzHcyA1M_yhtCWB3zbMsBxKclWSBEBuA3d0542fnoOjsxaOCmY8DZJU82OG9hch0XaOAGhxKoxtf1YAtWqVxuhtQxOWUbJcTJ4nZ-XB_mn7Yi02WhU914KjpPSSNWD5Ak3DAKLYQZQg0H0ANE4Rkh2OWbiU_nq7rnMX16TaTIcP&enc=deflate

### Steps to Reproduce

文档中这样描述
`xAxis.axisLabel.color 刻度标签文字的颜色，默认取 axisLine.lineStyle.color。`
和
`xAxis.axisPointer.label.backgroundColor 文本标签的背景颜色，默认是和 axis.axisLine.lineStyle.color 相同。`
但实际并未使用`axisLine.lineStyle.color`的颜色

### Current Behavior

依旧显示默认颜色

### Expected Behavior

颜色与`axisLine.lineStyle.color`统一

### Environment

```markdown
- OS:Windows 11
- Browser: Chroem 142.0.7444.176
- Framework:
```

### Any additional comments?

_No response_