[DOP-22579] Return statistics in GET /runs

[dolfinus]

Change Summary

Changed the response schema of GET /runs to include inputs, outputs and operations statistics. This is useful to show in list of runs within job, or to hide "Operations" tab at RunShow page.

Don't change response for lineage, as it includes inputs & outputs are distinct relations.

Also I haven't included statistics of child runs because its value depends on since+until range, and calculating the total number of child runs can be expensive as there is no filter against run.created_at which is partitioning column.

Related issue number

Checklist

• Commit message and PR title is comprehensive
• Keep the change as small as possible
• Unit and integration tests for the changes exist
• Tests pass on CI and coverage does not decrease
• Documentation reflects the changes where applicable
• docs/changelog/next_release/<pull request or issue id>.<change type>.rst file added describing change
  (see CONTRIBUTING.rst for details.)
• My PR is ready to review.

[codecov]

Codecov Report

Attention: Patch coverage is 98.94737% with 1 line in your changes missing coverage. Please review.

Project coverage is 93.04%. Comparing base (7fa0d2d) to head (56b4e22).
Report is 138 commits behind head on develop.

Files with missing lines	Patch %	Lines
data_rentgen/server/services/run.py	97.95%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #159      +/-   ##
===========================================
+ Coverage    92.82%   93.04%   +0.22%     
===========================================
  Files          180      182       +2     
  Lines         3956     4115     +159     
  Branches       269      277       +8     
===========================================
+ Hits          3672     3829     +157     
- Misses         222      224       +2     
  Partials        62       62              

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