Fix submit fail leading to ensemble failures

[eivindjahren]

Backport of #8894 and #9008

• 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

[sondreso]

🚢

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 80.30303% with 13 lines in your changes missing coverage. Please review.

Project coverage is 91.43%. Comparing base (cf17517) to head (59d527c).

Files with missing lines	Patch %	Lines
src/ert/scheduler/slurm_driver.py	58.33%	5 Missing ⚠️
src/ert/scheduler/job.py	63.63%	4 Missing ⚠️
src/ert/scheduler/lsf_driver.py	66.66%	4 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff                @@
##           version-11.0    #9032      +/-   ##
================================================
- Coverage         91.47%   91.43%   -0.05%     
================================================
  Files               343      343              
  Lines             21294    21331      +37     
================================================
+ Hits              19479    19503      +24     
- Misses             1815     1828      +13     

Flag	Coverage Δ
cli-tests	38.97% <46.96%> (-0.01%)	⬇️
gui-tests	72.42% <53.03%> (+0.04%)	⬆️
performance-tests	49.22% <36.36%> (-0.10%)	⬇️
unit-tests	80.02% <59.09%> (-0.09%)	⬇️

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