go.mod: upgrade tidb parser to latest

[hongyunyan]

Issue Number: N/A

Background

TiCDC currently pins github.com/pingcap/tidb/pkg/parser to v0.0.0-20251121075944-8f2630e53d5d.

Motivation

We want to move the parser dependency to the latest upstream version so TiCDC can pick up the newest parser changes without widening the dependency update beyond what is required for this task.

Summary

• upgrade github.com/pingcap/tidb/pkg/parser to v0.0.0-20260409042751-e0b4e44570cd
• refresh go.sum for the new parser module checksums
• keep github.com/pingcap/tidb unchanged because the parser-only bump did not require a wider module update

Testing

• make fmt
• go test --tags=intest for all packages that directly import github.com/pingcap/tidb/pkg/parser... except tests/integration_tests/...
• go test --tags=intest ./downstreamadapter/dispatcher -run ^

Notes

TestRedoBatchDMLEventsPartialFlush in ./downstreamadapter/dispatcher fails on both this branch and the unchanged upstream/master baseline, so it was treated as a pre-existing test issue rather than a regression from this parser upgrade.

release-note

None

Summary by CodeRabbit

• Chores
  • Updated dependencies to latest versions for improved stability and performance.

[ti-chi-bot]

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 6315c777-920b-4803-b6f0-e4aba867b5a5

📥 Commits

Reviewing files that changed from the base of the PR and between 0a418b4 and b28ff94.

⛔ Files ignored due to path filters (1)

• go.sum is excluded by !**/*.sum

📒 Files selected for processing (1)

• go.mod

---

📝 Walkthrough

Walkthrough

A dependency version update in go.mod bumps the github.com/pingcap/tidb/pkg/parser package from one pseudo-version to another, reflecting a change in the underlying parser package source.

Changes

Cohort / File(s)	Summary
Dependency Version Update go.mod	Updated github.com/pingcap/tidb/pkg/parser from v0.0.0-20251121075944-8f2630e53d5d to v0.0.0-20260409042751-e0b4e44570cd.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 With twitching nose, I celebrate,
A parser update, isn't it great?
One tiny hop to versions new,
Our dependencies bloom fresh and true! 🌱✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and accurately summarizes the main change: upgrading the TiDB parser dependency to the latest version.
Description check	✅ Passed	The description is largely complete with background, motivation, summary, testing details, and release notes, though it deviates from the required template by using a custom format instead of the template's "What problem does this PR solve?" and "What is changed and how it works?" sections.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[hongyunyan]

/test pull-cdc-mysql-integration-heavy

[hongyunyan]

/test pull-cdc-mysql-integration-light

[ti-chi-bot]

[FORMAT CHECKER NOTIFICATION]

Notice: To remove the do-not-merge/needs-linked-issue label, please provide the linked issue number on one line in the PR body, for example: Issue Number: close #123 or Issue Number: ref #456.

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[gemini-code-assist]

Code Review

This pull request updates the github.com/pingcap/tidb/pkg/parser dependency. The review feedback correctly points out that the go.sum file still contains obsolete entries from the previous dependency version and suggests running go mod tidy to clean these up.

[gemini-code-assist]

After updating dependencies, please run go mod tidy to remove obsolete entries from go.sum. The checksums for the previous version of github.com/pingcap/tidb/pkg/parser are still present in go.sum, and tidying the module will clean this up.

[ti-chi-bot]

@hongyunyan: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-cdc-mysql-integration-light	b28ff94	link	true	/test pull-cdc-mysql-integration-light
pull-cdc-mysql-integration-heavy	b28ff94	link	true	/test pull-cdc-mysql-integration-heavy

Full PR test history. Your PR dashboard.

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