[Enhancement] show segcompaction info in load profile

[freemandealer]

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Description

we need show segcompaction[^1][^2] related segment num & time cost information in load profile. 1) BetaRowsetWriter::_num_segcompacted、_num_segment 2) wait_flying_segcompaction wait time

[1] https://github.com/apache/doris/pull/12866 [2] https://doris.apache.org/zh-CN/docs/dev/advanced/best-practice/compaction?#segment-compaction

Solution

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Code of Conduct

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[niebayes]

Please assign this me!