sync: fix symlink with jfs://

[davies]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (f5d631e) 55.75% compared to head (ff8aeed) 55.73%.
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4286      +/-   ##
==========================================
- Coverage   55.75%   55.73%   -0.03%     
==========================================
  Files         153      153              
  Lines       39618    39616       -2     
==========================================
- Hits        22089    22078      -11     
- Misses      15056    15063       +7     
- Partials     2473     2475       +2     

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[github-actions]

Mutate Test Report
cmd/object_test.go-1-1: score:0.34 failed:59, passed:31, compile error:0, out of coverage:1, skip by comment:0, others:0
Job detail: https://github.com/juicedata/juicefs/actions/runs/7273108847/job/19816506162

pkg/chunk/cached_store_test.go-3-4: score:0.37 failed:54, passed:32, compile error:0, out of coverage:27, skip by comment:0, others:0
Job detail: https://github.com/juicedata/juicefs/actions/runs/7273108847/job/19816506626

pkg/chunk/cached_store_test.go-1-4: score:0.46 failed:44, passed:38, compile error:0, out of coverage:31, skip by comment:0, others:0
Job detail: https://github.com/juicedata/juicefs/actions/runs/7273108847/job/19816506342

pkg/chunk/cached_store_test.go-2-4: score:0.33 failed:55, passed:27, compile error:0, out of coverage:31, skip by comment:0, others:0
Job detail: https://github.com/juicedata/juicefs/actions/runs/7273108847/job/19816506496

pkg/chunk/cached_store_test.go-4-4: score:0.45 failed:42, passed:35, compile error:0, out of coverage:33, skip by comment:0, others:0
Job detail: https://github.com/juicedata/juicefs/actions/runs/7273108847/job/19816506786

Usage: https://github.com/juicedata/juicefs/blob/main/.github/scripts/mutate/how_to_use_mutate_test.md