Adjusted minimumPlayers for Wizard midround events. (#38424)

Adjusted minimumPlayers for Wizard midround events. (#38424)

* Adjusted minimumPlayers for Ninja and Wizard midround events

Wizard from 10->20
Ninja from 30->20
20 players matches Dragon and Loneop.

* Wizard midround minimum players from 20 to 30

* Update Resources/Prototypes/GameRules/events.yml

Co-authored-by: slarticodefast <161409025+slarticodefast@users.noreply.github.com>
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Co-authored-by: slarticodefast <161409025+slarticodefast@users.noreply.github.com>