[BugFix] fix pk table compact crash when light compaction is disable

[luohaha]

Why I'm doing:

There are two issues:

1. When BE config enable_light_pk_compaction_publish is false, std::vector<uint64_t> rssid_rowids in MergeEntry will be empty, and this code will cause crash:

rssid_rowids->insert(rssid_rowids->end(), top.rssid_rowids.begin() + start_offset,
                                             top.rssid_rowids.begin() + start_offset + nappend);

And real crash stack will be:

*** Aborted at 1716106255 (unix time) try "date -d @1716106255" if you are using GNU date ***
PC: @     0x7f5fdc14e410 __memcpy_ssse3_back
*** SIGSEGV (@0x0) received by PID 94048 (TID 0x7f5ee4b2f700) from PID 0; stack trace: ***
    @          0x67c0e42 google::(anonymous namespace)::FailureSignalHandler()
    @     0x7f5fdccfc630 (unknown)
    @     0x7f5fdc14e410 __memcpy_ssse3_back
    @          0x52572c6 std::vector<>::insert<>()
    @          0x525a664 starrocks::RowsetMergerImpl<>::get_next()
    @          0x525bd3b starrocks::RowsetMergerImpl<>::_do_merge_horizontally()
    @          0x525d073 starrocks::RowsetMergerImpl<>::_do_merge_vertically()
    @          0x525ed88 starrocks::RowsetMergerImpl<>::do_merge()
    @          0x5250161 starrocks::compaction_merge_rowsets()
    @          0x51265a7 starrocks::TabletUpdates::_do_compaction()
    @          0x5128622 starrocks::TabletUpdates::compaction_for_size_tiered()
    @          0x51290da starrocks::TabletUpdates::compaction()
    @          0x506c2ab starrocks::StorageEngine::_perform_update_compaction()
    @          0x4ff9174 starrocks::StorageEngine::_update_compaction_thread_callback()
    @          0x8bf3cb0 execute_native_thread_routine
    @     0x7f5fdccf4ea5 start_thread
    @     0x7f5fdc0f5b0d __clone
    @                0x0 (unknown)

2. union_iterator doesn't support Status UnionIterator::do_get_next(Chunk* chunk, std::vector<uint64_t>* rssid_rowids).
   Which will lead to compaction failure like:

Exxx xxxx compaction_scheduler.cpp:341] Fail to compact tablet xxx. version=xxx txn_id=xxx cost=xxs : Not supported: Chunk* chunk, vector<uint64_t>* rssid_rowids) not supported
/build/starrocks/be/src/storage/merge_iterator.cpp:194 fill(i)
/build/starrocks/be/src/storage/merge_iterator.cpp:251 init()
/build/starrocks/be/src/storage/lake/tablet_reader.cpp:210 _collect_iter->get_next(chunk, source_masks, rssid_rowids)
/build/starrocks/be/src/storage/lake/vertical_compaction_task.cpp:74 compact_column_group(is_key, i, column_group_size, column_groups[i], writer, mask_buffer.get(), source_masks.get(), cancel_func)

What I'm doing:

Fix this crash.
Fix https://github.com/StarRocks/StarRocksTest/issues/7449

What type of PR is this:

• BugFix
• Feature
• Enhancement
• Refactor
• UT
• Doc
• Tool

Does this PR entail a change in behavior?

• Yes, this PR will result in a change in behavior.
• No, this PR will not result in a change in behavior.

If yes, please specify the type of change:

• Interface/UI changes: syntax, type conversion, expression evaluation, display information
• Parameter changes: default values, similar parameters but with different default values
• Policy changes: use new policy to replace old one, functionality automatically enabled
• Feature removed
• Miscellaneous: upgrade & downgrade compatibility, etc.

Checklist:

• I have added test cases for my bug fix or my new feature
• This pr needs user documentation (for new or modified features or behaviors)
  • I have added documentation for my new feature or new function
• This is a backport pr

Bugfix cherry-pick branch check:

• I have checked the version labels which the pr will be auto-backported to the target branch
  • 3.3
  • 3.2
  • 3.1
  • 3.0
  • 2.5

[github-actions]

[FE Incremental Coverage Report]

✅ pass : 0 / 0 (0%)

[github-actions]

[BE Incremental Coverage Report]

❌ fail : 19 / 26 (73.08%)

file detail

	path	covered_line	new_line	coverage	not_covered_line_detail
🔵	be/src/storage/chunk_iterator.h	0	4	00.00%	[154, 155, 157, 159]
🔵	be/src/storage/rowset_merger.cpp	9	11	81.82%	[108, 369]
🔵	be/src/storage/union_iterator.cpp	10	11	90.91%	[113]

[github-actions]

@Mergifyio backport branch-3.3

[github-actions]

@Mergifyio backport branch-3.2

[github-actions]

@Mergifyio backport branch-3.1

[mergify]

backport branch-3.3

✅ Backports have been created

• #45909 [BugFix] fix pk table compact crash when light compaction is disable (backport #45855) has been created for branch branch-3.3

[mergify]

backport branch-3.2

✅ Backports have been created

• #45907 [BugFix] fix pk table compact crash when light compaction is disable (backport #45855) has been created for branch branch-3.2

[mergify]

backport branch-3.1

✅ Backports have been created

• #45908 [BugFix] fix pk table compact crash when light compaction is disable (backport #45855) has been created for branch branch-3.1