chore: change nydus snapshotter work dir

[Desiki-high]

Relevant Issue (if applicable)

If there are Issues related to this PullRequest, please list it.

Details

• use /var/lib/containerd/io.containerd.snapshotter.v1.nydus as nydus sanpshotter work dir.
• bump nydus snapshotter to v1.14.0

Types of changes

What types of changes does your PullRequest introduce? Put an x in all the boxes that apply:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation Update (if none of the other choices apply)

Checklist

Go over all the following points, and put an x in all the boxes that apply.

• I have updated the documentation accordingly.
• I have added tests to cover my changes.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 61.28%. Comparing base (f4fb04a) to head (d51cdfd).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1622   +/-   ##
=======================================
  Coverage   61.28%   61.28%           
=======================================
  Files         146      146           
  Lines       48143    48143           
  Branches    46110    46110           
=======================================
  Hits        29506    29506           
  Misses      17075    17075           
  Partials     1562     1562           

Files with missing lines	Coverage Δ
api/src/config.rs	87.62% <100.00%> (ø)

... and 1 file with indirect coverage changes

[imeoer]

Thanks, LGTM!