br: fix backup client (#41295)

[ti-chi-bot]

This is an automated cherry-pick of #41295

Signed-off-by: Leavrth jianjun.liao@outlook.com

What problem does this PR solve?

Issue Number: ref #40404 #40898

Problem Summary:

1. We need to use autoIDAccess.SequenceValue().Get() instead of autoIDAccess.SequenceCycle().Get().
   refer to
   

   tidb/meta/autoid/autoid.go

   Lines 1162 to 1175 in 48bc046

   	func (alloc *allocator) getIDAccessor(txn kv.Transaction) meta.AutoIDAccessor {
   	acc := meta.NewMeta(txn).GetAutoIDAccessors(alloc.dbID, alloc.tbID)
   	switch alloc.allocType {
   	case RowIDAllocType:
   	return acc.RowID()
   	case AutoIncrementType:
   	return acc.IncrementID(alloc.tbVersion)
   	case AutoRandomType:
   	return acc.RandomID()
   	case SequenceType:
   	return acc.SequenceValue()
   	}
   	return nil
   	}

2. fix condition when fetch replica label

What is changed and how it works?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

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• 3pointer
• YuJuncen

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[wuhuizuo]

/retitle br: fix backup client (#41295)

[joccau]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 11bbfad