[CI] Reduce timeout for codecov and not fail the job in any case

[xiangfu0]

Observed some tests are succeed, but codecov upload process timeout in 6 hours then failed the CI job.
So change the plugin timeout to 5mins and continue on error to make sure the checks can go through.

[codecov-commenter]

Codecov Report

Merging #10547 (1911e07) into master (1fc8150) will increase coverage by 41.05%.
The diff coverage is n/a.

@@              Coverage Diff              @@
##             master   #10547       +/-   ##
=============================================
+ Coverage     27.80%   68.85%   +41.05%     
- Complexity       58     6464     +6406     
=============================================
  Files          2087     2103       +16     
  Lines        112307   112759      +452     
  Branches      16918    16977       +59     
=============================================
+ Hits          31226    77642    +46416     
+ Misses        77988    29647    -48341     
- Partials       3093     5470     +2377     

Flag	Coverage Δ
integration1	?
integration2	24.01% <ø> (-0.20%)	⬇️
unittests1	67.84% <ø> (?)
unittests2	13.86% <ø> (?)

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see 1545 files with indirect coverage changes

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