fix(agent): Fixed json validation in slurm job data

[dusktreader]

Slurm started returning the slurm job state as a list in Slurm 23.11.
In order to support this and older versions of Slurm, the pydantic
schema was updated to handle both.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.93%. Comparing base (0eb872f) to head (26a8da3).
Report is 1 commits behind head on release/5.5.

Additional details and impacted files

@@               Coverage Diff               @@
##           release/5.5     #722      +/-   ##
===============================================
- Coverage        92.93%   92.93%   -0.01%     
===============================================
  Files               88       88              
  Lines             4842     4852      +10     
===============================================
+ Hits              4500     4509       +9     
- Misses             342      343       +1     

Flag	Coverage Δ
agent	93.98% <ø> (-0.06%)	⬇️
api	95.43% <ø> (ø)
cli	88.62% <ø> (ø)
core	96.31% <ø> (ø)

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[jamesbeedy]

+1