executor/analyzetest: Stabilise analyze table tests due to SyncWaitStatsLoad timeout

[mjonss]

What problem does this PR solve?

Issue Number: close #38882, close #38883

Problem Summary:
Timeout of SyncWaitStatsLoad, fixed by increasing the default wait.

What is changed and how it works?

Check List

Tests

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

Manually tested by running each test case 100 times concurrently (before fix ~5-15% failure, after 0 out of 100 failures)

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:

• Defined2014
• hawkingrei

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[Defined2014]

/merge

[ti-chi-bot]

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

Commit hash: ae43912

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