Get/SetBonePosePosition doc mismatch

**Your Godot version:**
4.6.1.stable.mono

**Issue description:**
the `Skeleton3D`'s method `SetBonePosePosition(int boneIdx, Vector3 position)` is described as such:

> position is a [Vector3](https://docs.godotengine.org/en/4.6/classes/class_vector3.html#class-vector3) describing a position local to the Skeleton3D node.

and `GetBonePosePosition(int boneIdx)`:

> Returns the pose position of the bone at bone_idx. The returned [Vector3](https://docs.godotengine.org/en/4.6/classes/class_vector3.html#class-vector3) is in the local coordinate space of the Skeleton3D node.

but it isn't, something as simple as this will show that it's relative to parent bone instead of Skeleton3D node:

``` C#
Vector3 test = skeleton.GetBonePosePosition(boneIndex);
GD.Print(test);
skeleton.SetBonePosePosition(boneIndex, test);
GD.Print(skeleton.GetBonePosePosition(boneIndex));
```

although this seems dumb, if SetBonePosePosition really expect a position relative to the node, the bone will fly off because GetBonePosePosition actually returns relative to parent bone, which can be verified in editor, which in itself is a mismatch. And the actual result is the bone does not move.

**URL to the documentation page:**
https://docs.godotengine.org/en/4.6/classes/class_skeleton3d.html#class-skeleton3d-method-set-bone-pose-position

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