[VL] Enable `collect_set` ignoreNulls

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#11,826 opened on Mar 25, 2026 1 comment 0 reactions 1 assignee Claimed by @yaooqinn View on GitHub

enhancement

Description

### Description

Need to follow up this change from Velox:
https://github.com/facebookincubator/velox/pull/16416/changes

### Gluten version

None

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