Fix bug where runpaths were incorrect for restart runs

[oyvindeide]

• 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 tests pass locally (after every commit!)

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

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 75.00000% with 5 lines in your changes missing coverage. Please review.

Project coverage is 90.81%. Comparing base (f0fb2aa) to head (9395ea7).

Files with missing lines	Patch %	Lines
src/ert/run_models/evaluate_ensemble.py	50.00%	3 Missing ⚠️
src/ert/run_models/manual_update.py	81.81%	2 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff                @@
##           version-10.3    #8607      +/-   ##
================================================
+ Coverage         90.79%   90.81%   +0.01%     
================================================
  Files               342      342              
  Lines             20945    20948       +3     
================================================
+ Hits              19017    19023       +6     
+ Misses             1928     1925       -3     

Flag	Coverage Δ
gui-tests	75.80% <65.00%> (-0.02%)	⬇️
integration-tests	54.00% <20.00%> (+0.02%)	⬆️
unit-tests	68.81% <35.00%> (+0.01%)	⬆️

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[DanSava]

Looks good! 💯