feat: implement partition_statistics for WindowAggExec (#18534) #4906

Job	Run time
Run sqllogictests with the sqlite test suite	1h 17m 14s
cargo test hash collisions (amd64)	9m 43s
linux build test	5m 12s
cargo test 'extended_tests' (amd64)	35m 52s
	2h 8m 1s

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