feat: Implement `partition_statistics` API for `SortMergeJoinExec` #4914

Job	Run time
linux build test	3m 17s
Run sqllogictests with the sqlite test suite	3m 7s
cargo test hash collisions (amd64)	3m 8s
cargo test 'extended_tests' (amd64)	1s
	9m 33s

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