domain: fix stats worker cannot recover from panic

[alivxxx]

What problem does this PR solve?

Stats worker cannot recover from panic correctly.

What is changed and how it works?

Change the call to recoverInDomain in a stand-alone function.

Check List

Tests

• Unit test

Code changes

• Has unexported function/method change

Side effects

• None

Related changes

• Need to cherry-pick to the release branch

[zz-jason]

LGTM

[alivxxx]

/run-all-tests

[codecov-io]

Codecov Report

Merging #9072 into master will increase coverage by 0.03%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##           master    #9072      +/-   ##
==========================================
+ Coverage   67.17%   67.21%   +0.03%     
==========================================
  Files         372      372              
  Lines       76642    76642              
==========================================
+ Hits        51484    51512      +28     
+ Misses      20554    20523      -31     
- Partials     4604     4607       +3

Impacted Files	Coverage Δ
domain/domain.go	40.67% <66.66%> (+4.97%)	⬆️
executor/executor.go	67.08% <0%> (-0.29%)	⬇️
executor/join.go	78.44% <0%> (+0.51%)	⬆️

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[eurekaka]

LGTM