lightning: fix ipv6 address (#35881)

[ti-srebot]

cherry-pick #35881 to release-6.1
You can switch your code base to this Pull Request by using git-extras:

# In tidb repo:
git pr https://github.com/pingcap/tidb/pull/35932

After apply modifications, you can push your change to this PR via:

git push git@github.com:ti-srebot/tidb.git pr/35932:release-6.1-673f336cf1e9

---

What problem does this PR solve?

Issue Number: close #35880

Problem Summary:

What is changed and how it works?

see issue description

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.

fix connect to tidb when using ipv6 host

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• buchuitoudegou
• lance6716

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[ti-srebot]

/run-all-tests

[sre-bot]

Code Coverage Details: https://codecov.io/github/pingcap/tidb/commit/70ae13b2afe928567361753bdde942ece8cd6e27

[D3Hunter]

/merge

[ti-chi-bot]

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

Commit hash: a1fecea

[ti-chi-bot]

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