[Feature Request] Update dot_expander to accept * as field #20431
Description
Is your feature request related to a problem? Please describe
When trying to replicated elastic pipelines I find that dot_expander doesn't have feature parity.
Describe the solution you'd like
I would like field=* to target all top level fields.
Related component
Indexing
Describe alternatives you've considered
No response
Additional context
https://www.elastic.co/docs/reference/enrich-processor/dot-expand-processor