refactor: condense trial update functions

[amandavialva01]

Description

Condenses trial update functions into one function that updates the specified fields for a given trial.

Test Plan

CI passes.

Checklist

• Changes have been manually QA'd
• User-facing API changes need the "User-facing API Change" label.
• Release notes should be added as a separate file under docs/release-notes/.
  See Release Note for details.
• Licenses should be included for new code which was copied and/or modified from any external code.

Ticket

DET-9993

[netlify]

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Name	Link
🔨 Latest commit	ce16000
🔍 Latest deploy log	https://app.netlify.com/sites/determined-ui/deploys/65c3b4c78d943200082785f9

[codecov]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (c5afb6c) 47.72% compared to head (ce16000) 47.72%.
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8808   +/-   ##
=======================================
  Coverage   47.72%   47.72%           
=======================================
  Files        1049     1049           
  Lines      167292   167293    +1     
  Branches     2243     2241    -2     
=======================================
+ Hits        79841    79843    +2     
+ Misses      87293    87292    -1     
  Partials      158      158           

Flag	Coverage Δ
backend	43.30% <79.16%> (+<0.01%)	⬆️
harness	64.32% <ø> (ø)
web	42.52% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
master/internal/trial.go	41.55% <100.00%> (ø)
master/pkg/model/experiment.go	13.63% <100.00%> (+0.71%)	⬆️
master/internal/api_trials.go	52.72% <0.00%> (ø)
master/internal/db/postgres_trial.go	67.33% <78.94%> (+1.14%)	⬆️

... and 3 files with indirect coverage changes

[carolinaecalderon]

LGTM!