Do not cancel ert run in gui test

[larsevj]

Resolves: #9420

This test: test_that_debug_info_button_provides_data_in_clipboard, runs in parallel and often fails with ert run not being properly terminated before the test finishes. I believe it is better to just wait longer for the run to finish instead of trying to cancel it.

• 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

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.85%. Comparing base (0ca408f) to head (cf081aa).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9543      +/-   ##
==========================================
+ Coverage   91.84%   91.85%   +0.01%     
==========================================
  Files         433      433              
  Lines       26768    26768              
==========================================
+ Hits        24586    24589       +3     
+ Misses       2182     2179       -3     

Flag	Coverage Δ
cli-tests	39.78% <ø> (ø)
everest-models-test	34.67% <ø> (ø)
gui-tests	72.12% <ø> (ø)
integration-test	37.26% <ø> (+0.02%)	⬆️
performance-tests	52.00% <ø> (+0.02%)	⬆️
test	40.45% <ø> (-0.03%)	⬇️
unit-tests	74.13% <ø> (+<0.01%)	⬆️

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[jonathan-eq]

Very good!