Stop copying LogicalPlan and Exprs in SingleDistinctToGroupBy (#10527)

* chore: merge main and resolve conflict

* chore: use less copy

* chore: remove clone

* remove more clones (#8)

* refactor: use HashSet<&Expr> instead of HashSet<String>

* refactor: remove more cloning

* chore: reduce string allocation

Co-authored-by: Adam Curtis <[email protected]>

* chore: return internal error instead of panacing

* chore: use arg display_name as hash key instead of a hashed value

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Co-authored-by: Adam Curtis <[email protected]>

Author: appletreeisyellow