[KYUUBI #6912][LINEAGE] Properly handle empty attribute set on mergeRelationColumnLineage#6911

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xglv1985 wants to merge 7 commits intoapache:masterfrom

xglv1985:fix_spark_lineage_runtime_exception

Commits on Feb 7, 2025

fix a runtime exception when generate column lineage tuple
xglv1985
committed

Commits on Feb 8, 2025

fix a runtime exception when generate column lineage tuple--unit test
xglv1985
committed

Commits on Feb 10, 2025

fix a runtime exception when generate column lineage tuple--remove tab from UT code
xglv1985
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Commits on Feb 11, 2025