lightning: fix lightning TLS.WithHost to access the correct host (#45749)

[ti-chi-bot]

This is an automated cherry-pick of #45749

What problem does this PR solve?

Issue Number: close #45747

Problem Summary:

What is changed and how it works?

TrimPrefix before WithHost

Check List

Tests

• Unit test

Side effects

• None

Documentation

• None

Release note

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

None

[lichunzhu]

/lgtm

[lichunzhu]

/lgtm

[lichunzhu]

/lgtm

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-10-18 03:11:46.164971296 +0000 UTC m=+1799503.752081426: ☑️ agreed by lance6716.
• 2023-10-18 03:13:56.195949881 +0000 UTC m=+1799633.783060011: ☑️ agreed by lichunzhu.

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lance6716, lichunzhu

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lance6716, lichunzhu

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

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [lance6716,lichunzhu]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[lance6716]

/test pull-br-integration-test

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[lance6716]

/hold

wait the lightning integration CI

[lance6716]

/test pull-br-integration-test

[ti-chi-bot]

@lance6716: The specified target(s) for /test were not found.
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[lance6716]

/test pull-br-integration-test

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@lance6716: No presubmit jobs available for pingcap/[email protected]

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/test pull-br-integration-test

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[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (release-7.1@7a83625). Click here to learn what that means.
The diff coverage is n/a.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-7.1     #47734   +/-   ##
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  Coverage               ?   73.4358%           
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  Files                  ?       1206           
  Lines                  ?     377524           
  Branches               ?          0           
================================================
  Hits                   ?     277238           
  Misses                 ?      82599           
  Partials               ?      17687           

[lance6716]

/unhold