Fix migration information update bug when linked github account

[lunny]

As title.

[codecov-io]

Codecov Report

Merging #10310 into master will decrease coverage by 0.01%.
The diff coverage is 50%.

@@            Coverage Diff             @@
##           master   #10310      +/-   ##
==========================================
- Coverage   43.72%   43.71%   -0.02%     
==========================================
  Files         585      585              
  Lines       81016    81016              
==========================================
- Hits        35423    35413      -10     
- Misses      41208    41215       +7     
- Partials     4385     4388       +3

Impacted Files	Coverage Δ
services/pull/commit_status.go	5.19% <0%> (ø)	⬆️
modules/templates/helper.go	40.73% <100%> (ø)	⬆️
services/pull/check.go	32.92% <0%> (-5.49%)	⬇️
modules/git/command.go	86.95% <0%> (-2.61%)	⬇️
services/pull/temp_repo.go	29.05% <0%> (-2.57%)	⬇️
services/pull/patch.go	60.37% <0%> (-2.52%)	⬇️
services/pull/pull.go	32.43% <0%> (-1.51%)	⬇️
modules/indexer/stats/db.go	50% <0%> (ø)	⬆️
modules/git/repo.go	47.7% <0%> (+0.91%)	⬆️
modules/queue/workerpool.go	60.14% <0%> (+2.13%)	⬆️
... and 2 more

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[techknowlogick]

Please send backport :)

[lunny]

@techknowlogick Just found migrating reviews and reactions are supported on v1.12. So I removed backport/v1.11 label.