The name of the node group in the geometry nodes logger is created
in `GeoModifierLog::get_local_tree_logger`, where it references the
compute context. However, the compute context is a local variable
that doesn't live as long as the log. Therefore the log needs to own
the node group name.
Removing the ownership from `NodeGroupComputeContext` may be
possible as well, but seems less obviously correct. This can be a
temporary solution until we can completely avoid storing strings
in the logger (see D15775).
Fixes T101599
46c40d7fa1