feat(tikvgroup): refactor to use task v3 and add more uts

[liubog2008]

• change tikvgroup to use task v3
• add uts for tikvgroup
• extract finalizer add task to common

[ti-chi-bot]

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 59.25110% with 185 lines in your changes missing coverage. Please review.

Project coverage is 35.07%. Comparing base (90a3a2a) to head (fefdd24).

Additional details and impacted files

@@              Coverage Diff               @@
##           feature/v2    #6016      +/-   ##
==============================================
+ Coverage       31.91%   35.07%   +3.16%     
==============================================
  Files             153      154       +1     
  Lines            9945    10077     +132     
==============================================
+ Hits             3174     3535     +361     
+ Misses           6517     6283     -234     
- Partials          254      259       +5     

Flag	Coverage Δ
unittest	35.07% <59.25%> (+3.16%)	⬆️

[csuzhangxc]

/run-pull-e2e-kind-v2

[liubog2008]

/run-pull-e2e-kind-v2