tests: fix path of LDFLAGS for global kill e2e test (#47896)

[ti-chi-bot]

This is an automated cherry-pick of #47896

What problem does this PR solve?

Issue Number: close #47895

Problem Summary: Global kill e2e test failed

What is changed and how it works?

Fix path of LDFLAGS related to path changed by #47123.

Check List

Tests

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

  • I checked and no code files have been changed.

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.

None

[pingyu]

/test pull-e2e-test

[ti-chi-bot]

@pingyu: The specified target(s) for /test were not found.
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Use /test all to run the following jobs that were automatically triggered:

• pingcap/tidb/release-7.5/ghpr_build
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In response to this:

/test pull-e2e-test

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[tiprow]

@pingyu: No presubmit jobs available for pingcap/tidb@release-7.5

In response to this:

/test pull-e2e-test

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[pingyu]

/cc @hawkingrei @lance6716

[pingyu]

/cc @hawkingrei @lance6716

PTAL, thanks~

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-10-22 02:31:01.363700411 +0000 UTC m=+2142658.950810553: ☑️ agreed by hawkingrei.
• 2023-10-22 11:43:33.275313816 +0000 UTC m=+2175810.862423963: ☑️ agreed by lance6716.