increase bg gc check interval (#5056)

[ti-chi-bot]

This is an automated cherry-pick of #5056

What problem does this PR solve?

Issue Number: close #5057

Problem Summary: The background gc check interval is too short and may consume some unnecessary resource consumption.

What is changed and how it works?

Increase background gc check interval from 5 seconds to 60 seconds.

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

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• JaySon-Huang
• lidezhu

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[lidezhu]

/merge

[ti-chi-bot]

@lidezhu: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

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[ti-chi-bot]

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

Commit hash: ec5efe7

[lidezhu]

/rebuild

[lidezhu]

/run-integration-test