Download LFS in git and web workflow from minio/s3 directly (SERVE_DIRECT)

[ABNER-1]

Support SERVE_DIRECT config filed for lfs download.
Return a minio/s3 link when SERVE_DIRECT enabled in git & web workflow.

Issue #16711

[codecov-commenter]

Codecov Report

Merging #16731 (81d7204) into main (06f8264) will decrease coverage by 0.15%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main   #16731      +/-   ##
==========================================
- Coverage   45.36%   45.21%   -0.16%     
==========================================
  Files         760      760              
  Lines       85495    85504       +9     
==========================================
- Hits        38786    38659     -127     
- Misses      40425    40591     +166     
+ Partials     6284     6254      -30     

Impacted Files	Coverage Δ
routers/web/repo/download.go	28.20% <0.00%> (-1.94%)	⬇️
services/lfs/server.go	69.50% <0.00%> (-0.93%)	⬇️
services/wiki/wiki.go	0.00% <0.00%> (-58.46%)	⬇️
services/pull/temp_repo.go	30.76% <0.00%> (-3.85%)	⬇️
services/pull/check.go	25.51% <0.00%> (-2.76%)	⬇️
services/repository/transfer.go	54.71% <0.00%> (-1.89%)	⬇️
services/pull/patch.go	54.23% <0.00%> (-1.70%)	⬇️
modules/queue/workerpool.go	54.58% <0.00%> (-1.15%)	⬇️
services/pull/pull.go	41.78% <0.00%> (ø)
models/repo_list.go	78.43% <0.00%> (+0.78%)	⬆️
... and 2 more

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