Allow the bhist command to be temporarily unavailable

[berland]

This makes the handling of a FileNotFoundError on bhist similar to the handling of FileNotFoundError from bjobs. It is important not to crash on potentially intermittent failures in code that is rerun every 2 seconds.

Issue
Resolves driver crash when filesystem is down temporarily. Observed in span-id 5d8f799c0d5fb127e4c7be3e56239a49

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 #9687 will not alter performance

_{Comparing berland:allow_bhist_no_such_file (c930d3d) with main (3a31ffb)}

Summary

✅ 24 untouched benchmarks

[andreas-el]

Better handling! 👍

[berland]

Superseded by #9696