fix(Tracking): ensure velocity is not set on kinematic rigidbody

Rigidbodies cannot have velocities set on them if they are kinematic
as they are not actually part of the physics simulation when kinematic
so this fix just ensures the kinematic state is checked before trying
to apply a velocity to a rigidbody.

Runtime/Tracking/Follow/Modifier/Property/Position/RigidbodyVelocity.cs

@@ -71,7 +71,7 @@ protected override void DoModify(GameObject source, GameObject target, GameObjec
             Vector3 velocityTarget = positionDelta / deltaTime;
             Vector3 calculatedVelocity = Vector3.MoveTowards(cachedTargetRigidbody.velocity, velocityTarget, MaxDistanceDelta / deltaTime);
 
-            if (calculatedVelocity.sqrMagnitude < VelocityLimit)
+            if (!cachedTargetRigidbody.isKinematic && calculatedVelocity.sqrMagnitude < VelocityLimit)
             {
                 cachedTargetRigidbody.velocity = calculatedVelocity;
             }

Runtime/Tracking/Velocity/VelocityApplier.cs

@@ -74,7 +74,7 @@ public virtual void ClearTarget()
         /// </summary>
         public virtual void Apply()
         {
-            if (!this.IsValidState() || Source == null || Target == null)
+            if (!this.IsValidState() || Source == null || Target == null || Target.isKinematic)
             {
                 return;
             }