Ignore OSErrors on subprocess call of bjobs and bhist

[berland]

Pretend these kinds of issues are flaky. It is important not to crash on potentially intermittent failures in code that is rerun every 2 seconds.

Issue
Resolves #9694

Approach
try/catch

• PR title captures the intent of the changes, and is fitting for release notes.
• Added appropriate release note label
• Commit history is consistent and clean, in line with the contribution guidelines.
• Make sure unit tests pass locally after every commit (git rebase -i main --exec 'pytest tests/ert/unit_tests -n logical -m "not integration_test"')

When applicable

• When there are user facing changes: Updated documentation
• New behavior or changes to existing untested code: Ensured that unit tests are added (See Ground Rules).
• Large PR: Prepare changes in small commits for more convenient review
• Bug fix: Add regression test for the bug
• Bug fix: Create Backport PR to latest release

[codspeed-hq]

CodSpeed Performance Report

Merging #9696 will not alter performance

_{Comparing berland:allow_bhist_no_such_file_with_test (5dc6336) with main (5fb2308)}

Summary

✅ 24 untouched benchmarks

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 70.00000% with 6 lines in your changes missing coverage. Please review.

Project coverage is 91.72%. Comparing base (c4217b1) to head (78ef92c).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/ert/scheduler/openpbs_driver.py	44.44%	5 Missing ⚠️
src/ert/scheduler/slurm_driver.py	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9696      +/-   ##
==========================================
- Coverage   91.74%   91.72%   -0.02%     
==========================================
  Files         426      426              
  Lines       26538    26550      +12     
==========================================
+ Hits        24346    24352       +6     
- Misses       2192     2198       +6     

Flag	Coverage Δ
cli-tests	39.63% <0.00%> (-0.03%)	⬇️
everest-models-test	34.14% <0.00%> (-0.02%)	⬇️
gui-tests	74.28% <0.00%> (-0.04%)	⬇️
integration-test	37.97% <0.00%> (-0.03%)	⬇️
performance-tests	51.56% <0.00%> (-0.04%)	⬇️
test	39.50% <0.00%> (-0.03%)	⬇️
unit-tests	74.22% <70.00%> (-0.02%)	⬇️

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[eivindjahren]

👍