support arbitrary wildcard (quickwit-oss#5606)

* run wildcard as automatons

* add tests for new wildcard queries

* refactor json path handling for automaton queries

* regex support

* run automaton in search thread pool

* cleanup, refactor and test

* improve error messages

Co-authored-by: Adrien Guillo <[email protected]>

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Co-authored-by: Adrien Guillo <[email protected]>