chore: collect the log of the backup failed

[wangyelei]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 26.31579% with 14 lines in your changes missing coverage. Please review.

Project coverage is 65.18%. Comparing base (bdfc359) to head (894ace8).
Report is 4 commits behind head on release-0.9.

Files with missing lines	Patch %	Lines
...ollers/dataprotection/log_collection_controller.go	26.31%	14 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff               @@
##           release-0.9    #8208      +/-   ##
===============================================
+ Coverage        65.01%   65.18%   +0.17%     
===============================================
  Files              358      358              
  Lines            45109    45265     +156     
===============================================
+ Hits             29328    29507     +179     
+ Misses           13166    13145      -21     
+ Partials          2615     2613       -2     

Flag	Coverage Δ
unittests	65.18% <26.31%> (+0.17%)	⬆️

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