Handle colliders above body if body is becoming taller

[bddckr]

ExtendRealityLtd/Zinnia.Unity#157 brought Body Representation that ensures the body is as tall as the user, defined by the headset's position relative to the play area.

If the user stands up while underneath virtual geometry we should not allow the body to increase its height. Instead the body should diverge from the real-world body defined by the headset.