[LogQL] Support `drop` by pattern

[loganmzz]

Is your feature request related to a problem? Please describe.

I use JSON log and it contains many keys relative to Kubernetes. I would like to remove several based on a prefix (e.g. kubernetes_labels_)

Describe the solution you'd like

Support regular expression in drop parameters:

drop `kubernetes_labels_.*`

Describe alternatives you've considered

List whole possible keys and update query as new labels are added.

Additional context

N/A