fuse: Only reload list of snapshots once per minute

[fd0]

No description provided.

[codecov-io]

Codecov Report

Merging #1507 into master will decrease coverage by 0.13%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master    #1507      +/-   ##
==========================================
- Coverage   51.78%   51.65%   -0.14%     
==========================================
  Files         138      138              
  Lines       11100    11103       +3     
==========================================
- Hits         5748     5735      -13     
- Misses       4476     4498      +22     
+ Partials      876      870       -6

Impacted Files	Coverage Δ
internal/fuse/root.go	0% <ø> (ø)	⬆️
internal/fuse/snapshots_dir.go	0% <0%> (ø)	⬆️
internal/checker/checker.go	67.55% <0%> (-3.78%)	⬇️
internal/archiver/archiver.go	65.03% <0%> (+0.21%)	⬆️
internal/backend/s3/s3.go	65.76% <0%> (+1.15%)	⬆️

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