config: fix data race raised by EnableCollectExecutionInfo

[CbcWestwolf]

What problem does this PR solve?

Issue Number: close #38408

Problem Summary:

Data race at Instance.EnableCollectExecutionInfo

What is changed and how it works?

Use it as an AtomicBool

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.

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• bb7133
• hawkingrei

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[CbcWestwolf]

/cc bb7133 hawkingrei
PTAL

[hawkingrei]

/check-issue-triage-complete

[bb7133]

LGTM

[bb7133]

/merge

[ti-chi-bot]

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

Commit hash: db8bad9

[sre-bot]

TiDB MergeCI notify

🔴 Bad News! New failing [1] after this pr merged.
These new failed integration tests seem to be caused by the current PR, please try to fix these new failed integration tests, thanks!

CI Name	Result	Duration	Compare with Parent commit
idc-jenkins-ci-tidb/integration-ddl-test	🟥 failed 1, success 5, total 6	28 min	New failing
idc-jenkins-ci-tidb/common-test	✅ all 11 tests passed	9 min 45 sec	Fixed
idc-jenkins-ci/integration-cdc-test	🟢 all 37 tests passed	28 min	Existing passed
idc-jenkins-ci-tidb/integration-common-test	🟢 all 17 tests passed	20 min	Existing passed
idc-jenkins-ci-tidb/sqllogic-test-2	🟢 all 28 tests passed	7 min 38 sec	Existing passed
idc-jenkins-ci-tidb/tics-test	🟢 all 1 tests passed	7 min 11 sec	Existing passed
idc-jenkins-ci-tidb/sqllogic-test-1	🟢 all 26 tests passed	5 min 5 sec	Existing passed
idc-jenkins-ci-tidb/mybatis-test	🟢 all 1 tests passed	3 min 21 sec	Existing passed
idc-jenkins-ci-tidb/integration-compatibility-test	🟢 all 1 tests passed	2 min 36 sec	Existing passed
idc-jenkins-ci-tidb/plugin-test	🟢 build success, plugin test success	4min	Existing passed