*: upgrade go version to 1.25.14 (#12867)

[ti-chi-bot]

This is an automated cherry-pick of #12867

What problem does this PR solve?

Issue Number: close #12868

What is changed and how it works?

Check List

Tests

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

Questions

Will it cause performance regression or break compatibility?

Do you need to update user documentation, design documentation or monitoring documentation?

Release note

Please refer to [Release Notes Language Style Guide](https://pingcap.github.io/tidb-dev-guide/contribute-to-tidb/release-notes-style-guide.html) to write a quality release note.

If you don't think this PR needs a release note then fill it with `None`.

Summary by CodeRabbit

• Chores
  • Updated the project and example components to use Go 1.25.14.
  • Updated integration test tooling to build with Go 1.25.14.
  • No user-facing functionality or dependency changes.

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Advanced

Run ID: 82e5d036-6a7e-4be8-baac-69e62d5c49e1

📥 Commits

Reviewing files that changed from the base of the PR and between 66c1d4d and 00454dc.

📒 Files selected for processing (6)

• deployments/ticdc/docker/integration-test.Dockerfile
• examples/golang/avro-checksum-verification/go.mod
• examples/golang/canal-json-handle-key-only/go.mod
• go.mod
• tests/integration_tests/debezium/go.mod
• tools/check/go.mod

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📝 Walkthrough

Walkthrough

The pull request updates Go version references from 1.25.12 to 1.25.14 in the repository, nested modules, and the integration-test Dockerfile.

Changes

Go Toolchain Alignment

Layer / File(s)	Summary
Go module version updates go.mod, examples/golang/*/go.mod, tests/integration_tests/debezium/go.mod, tools/check/go.mod	The Go version directives change from 1.25.12 to 1.25.14.
Integration-test Docker toolchain deployments/ticdc/docker/integration-test.Dockerfile	The downloader stage now fetches and installs Go 1.25.14.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~5 minutes

Change: Other

Merge Risk: ⚪ Minimal · up to 00454

The PR aligns the repository modules and integration-test Docker build with Go 1.25.14, with no identified merge-blocking risk.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description includes the required issue reference and template headings, but it does not explain the change, select an applicable test option, answer the compatibility and documentation questions,…	Add a brief explanation of the Go version upgrade. Select the applicable test option, such as No code, and complete the compatibility and documentation questions. Set the release note to None if no release note is required.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly states the main change: upgrading Go to version 1.25.14. The cherry-pick reference does not prevent the title from being specific.
Linked Issues check	✅ Passed	Issue #12868 requires an upgrade to Go 1.25.14. The pull request updates the root module, four additional Go modules, and the integration-test Dockerfile from Go 1.25.12 to Go 1.25.14. The changes imp…
Out of Scope Changes check	✅ Passed	The reviewed changes only update Go version declarations and the Go toolchain version used by the integration-test Dockerfile. These changes directly support issue #12868. No unrelated source, depende…
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…

Full details: Description check

Explanation

The description includes the required issue reference and template headings, but it does not explain the change, select an applicable test option, answer the compatibility and documentation questions, or provide a release note or None.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create a new PR

Warning

Some tools did not complete. Review the errors below.

🔧 golangci-lint (2.13.2)

level=error msg="Running error: context loading failed: no go files to analyze: running go mod tidy may solve the problem"

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (release-8.5@66c1d4d). Learn more about missing BASE report.

Additional details and impacted files

Components	Coverage Δ
cdc	57.6085% <0.0000%> (?)
dm	49.5211% <0.0000%> (?)
engine	50.7167% <0.0000%> (?)

Flag	Coverage Δ
cdc	57.6085% <ø> (?)
unit	53.6235% <ø> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

@@               Coverage Diff                @@
##             release-8.5     #12869   +/-   ##
================================================
  Coverage               ?   53.6235%           
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  Files                  ?       1007           
  Lines                  ?     138512           
  Branches               ?          0           
================================================
  Hits                   ?      74275           
  Misses                 ?      58689           
  Partials               ?       5548           

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[lidezhu]

/test pull-dm-integration-test

[lidezhu]

/test pull-cdc-integration-pulsar-test

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lidezhu

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