[BugFix] Fix vector index not found

[cutiechi]

Why I'm doing:

What I'm doing:

Fixes #55754

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
  • 3.4
  • 3.3
  • 3.2
  • 3.1
  • 3.0

[CLAassistant]

All committers have signed the CLA.

[github-actions]

[Java-Extensions Incremental Coverage Report]

✅ pass : 0 / 0 (0%)

[github-actions]

[FE Incremental Coverage Report]

✅ pass : 0 / 0 (0%)

[github-actions]

[BE Incremental Coverage Report]

❌ fail : 2 / 12 (16.67%)

file detail

	path	covered_line	new_line	coverage	not_covered_line_detail
🔵	be/src/storage/snapshot_manager.cpp	0	8	00.00%	[814, 815, 816, 817, 818, 819, 820, 821]
🔵	be/src/storage/tablet_schema.cpp	2	4	50.00%	[384, 385]

[github-actions]

@Mergifyio backport branch-3.4

[mergify]

backport branch-3.4

✅ Backports have been created

• #56923 [BugFix] Fix vector index not found (backport #56860) has been created for branch branch-3.4