Lightning: change severity of clusterResourceCheckItem,emptyRegionCheckItem from Critical to Warn (#37657)

[ti-chi-bot]

This is an automated cherry-pick of #37657

What problem does this PR solve?

Issue Number: close #37654

Problem Summary:

What is changed and how it works?

• Change severity of clusterResourceCheckItem from Critical to Warn
• Change severity of emptyRegionCheckItem from Critical to Warn

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.

Change severity of clusterResourceCheckItem,emptyRegionCheckItem from Critical to Warn

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• lichunzhu
• niubell

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[niubell]

LGTM

[lichunzhu]

LGTM

[lichunzhu]

/merge

[ti-chi-bot]

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

Commit hash: adbec15

[ti-chi-bot]

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