include link stats in adminspace

[wyfo]

No description provided.

[github-actions]

PR missing one of the required labels: {'internal', 'dependencies', 'enhancement', 'documentation', 'breaking-change', 'bug', 'new feature'}

[codecov]

Codecov Report

Attention: Patch coverage is 72.00000% with 7 lines in your changes missing coverage. Please review.

Project coverage is 71.54%. Comparing base (dc7ae1e) to head (2b6298f).

Files with missing lines	Patch %	Lines
zenoh/src/net/runtime/adminspace.rs	0.00%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1916      +/-   ##
==========================================
+ Coverage   71.50%   71.54%   +0.03%     
==========================================
  Files         363      363              
  Lines       65032    65046      +14     
==========================================
+ Hits        46501    46536      +35     
+ Misses      18531    18510      -21     

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[OlivierHecart]

I wound have expected the link stats to also appear in the open metrics report with something like:
tx_z_put_msgs{space="user",zid="d4067d35b7ee60bfaf9b80cb94aac1aa",link="13573168778386999397"}

[OlivierHecart]

I wound have expected the link stats to also appear in the open metrics report with something like:
tx_z_put_msgs{space="user",zid="d4067d35b7ee60bfaf9b80cb94aac1aa",link="13573168778386999397"}

Let's address the open metrics report in another PR.