txn: fix the point get data read for RC

[cfzjywxk]

What problem does this PR solve?

Issue Number: close #41581

Problem Summary:
The point get read result is unexpected if RC is used with DML statements.

What is changed and how it works?

Update the forUpdateTS when building insert/delete/update/select for update executors, to ensure the pointGetExecutor may use the correct timestamp to read.

Check List

Tests

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

Side effects

Documentation

Release note

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

Fix the incorrect result when RC is used with update.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• jackysp
• lcwangchao

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

The full list of commands accepted by this bot can be found here.

Reviewer can indicate their review by submitting an approval review.
Reviewer can cancel approval by submitting a request changes review.

[jackysp]

LGTM

[cfzjywxk]

/test unit-test

[cfzjywxk]

/retest-required

[cfzjywxk]

/merge

[ti-chi-bot]

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

Commit hash: b06588a

[wuhuizuo]

/cherry-pick release-6.1-20230221-v6.1.1

[ti-chi-bot]

@wuhuizuo: failed to apply #41590 on top of branch "release-6.1-20230221-v6.1.1":

failed to git commit: exit status 1

In response to this:

/cherry-pick release-6.1-20230221-v6.1.1

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.