action: reduce the number of times the codecov tool sends comments

[adamqqqplay]

Relevant Issue (if applicable)

containerd/nydus-snapshotter#503

Details

This patch alleviates the problem that codecov frequently sending emails to users when PR is updated.

Types of changes

What types of changes does your PullRequest introduce? Put an x in all the boxes that apply:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation Update (if none of the other choices apply)

Checklist

Go over all the following points, and put an x in all the boxes that apply.

• I have updated the documentation accordingly.
• I have added tests to cover my changes.

[anolis-bot]

@adamqqqplay , a new test job has been submitted. Please wait in patience. The test job url: https://tone.openanolis.cn/ws/nrh4nnio/test_result/83117

[codecov]

Codecov Report

Merging #1350 (8bfb26d) into master (7d5cb1a) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1350      +/-   ##
==========================================
- Coverage   45.70%   45.69%   -0.01%     
==========================================
  Files         123      123              
  Lines       37287    37287              
  Branches    37287    37287              
==========================================
- Hits        17043    17040       -3     
- Misses      19347    19348       +1     
- Partials      897      899       +2     

see 3 files with indirect coverage changes

[anolis-bot]

@adamqqqplay , The CI test is completed, please check result:

Test Case		Test Result
build rust golang image		✅ SUCCESS
compile nydusd		✅ SUCCESS
compile ctr remote		✅ SUCCESS
compile nydus snapshotter		✅ SUCCESS
run container with rafs		✅ SUCCESS
run container with zran		✅ SUCCESS
run container with rafs and compile linux		✅ SUCCESS

Congratulations, your test job passed!