Simplify openpbs job states

[eivindjahren]

• 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

[xjules]

The issue is that we have the same pattern; ie. Literal states, in other drivers too.

[eivindjahren]

This was only used to iterate over in the openpbs driver and in the test so it didn't need to be a Literal, just a list. The other ones seem to be also used for typing.

[xjules]

Seems to be fine then

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.86%. Comparing base (a51790c) to head (38220a4).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8347      +/-   ##
==========================================
+ Coverage   89.84%   89.86%   +0.02%     
==========================================
  Files         347      347              
  Lines       21138    21138              
==========================================
+ Hits        18991    18996       +5     
+ Misses       2147     2142       -5     

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[xjules]

Let's ship it! 🚀