ci: lower hf trainer accuracy target + improve failure messages

[eecsliu]

Ticket

Description

test_hf_trainer_api_accuracy failed due to the accuracy target not being met. This PR decreases the accuracy target so that the test is less likely to fail. Additionally, this PR adds some better failure messaging to runs so that future test failures are easier to debug.

Test Plan

No manual testing required. Make sure e2e tests pass.

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.

[netlify]

✅ Deploy Preview for determined-ui canceled.

Name	Link
🔨 Latest commit	aa95f06
🔍 Latest deploy log	https://app.netlify.com/sites/determined-ui/deploys/66625ac90c61510008f90b89

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 48.96%. Comparing base (84299a6) to head (aa95f06).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #9322   +/-   ##
=======================================
  Coverage   48.96%   48.96%           
=======================================
  Files        1234     1234           
  Lines      159823   159823           
  Branches     2780     2781    +1     
=======================================
+ Hits        78257    78259    +2     
+ Misses      81391    81389    -2     
  Partials      175      175           

Flag	Coverage Δ
backend	43.69% <ø> (+<0.01%)	⬆️
harness	63.99% <ø> (ø)
web	44.12% <ø> (ø)

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

see 3 files with indirect coverage changes

[MikhailKardash]

LGTM