Add GetReviews() to RetryDownloader

[6543]

as title

@lunny pleace have a look at this

[codecov-io]

Codecov Report

Merging #11093 into master will increase coverage by 0.01%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master   #11093      +/-   ##
==========================================
+ Coverage   43.42%   43.44%   +0.01%     
==========================================
  Files         600      600              
  Lines       85022    85034      +12     
==========================================
+ Hits        36922    36939      +17     
+ Misses      43541    43539       -2     
+ Partials     4559     4556       -3     

Impacted Files	Coverage Δ
modules/migrations/base/downloader.go	23.93% <0.00%> (-2.74%)	⬇️
modules/indexer/stats/db.go	50.00% <0.00%> (-18.75%)	⬇️
modules/git/utils.go	65.67% <0.00%> (-4.48%)	⬇️
modules/queue/unique_queue_disk_channel.go	53.84% <0.00%> (-1.93%)	⬇️
modules/git/repo.go	51.04% <0.00%> (+0.41%)	⬆️
models/issue.go	51.95% <0.00%> (+0.46%)	⬆️
models/gpg_key.go	53.95% <0.00%> (+0.52%)	⬆️
modules/notification/webhook/webhook.go	40.20% <0.00%> (+0.58%)	⬆️
services/pull/pull.go	33.96% <0.00%> (+0.76%)	⬆️
services/pull/check.go	52.43% <0.00%> (+2.43%)	⬆️
... and 2 more

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[zeripath]

Make lg-tm work