Add Simen Abelsen to contributor lists

[lunkwill42]

Scope and purpose

Simen's first PRs are being merged this week, so we should add him to the list of contributors :)

Contributor Checklist

Every pull request should have this checklist filled out, no matter how small it is.
More information about contributing to NAV can be found in the
Hacker's guide to NAV.

• [ ] Added a changelog fragment for towncrier
• [ ] Added/amended tests for new/changed code
• Added/changed documentation
• Linted/formatted the code with ruff, easiest by using pre-commit
• The first line of the commit message continues the sentence "If applied, this commit will ...", starts with a capital letter, does not end with punctuation and is 50 characters or less long. See https://cbea.ms/git-commit/
• This pull request is based on the correct upstream branch: For a patch/bugfix affecting the latest stable version, it should be based on that version's branch (<major>.<minor>.x). For a new feature or other additions, it should be based on master.
• [ ] If applicable: Created new issues if this PR does not fix the issue completely/there is further work to be done
• [ ] If this results in changes in the UI: Added screenshots of the before and after
• [ ] If this adds a new Python source code file: Added the boilerplate header to that file

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

Test results

   12 files     12 suites   12m 18s ⏱️
2 244 tests 2 244 ✅ 0 💤 0 ❌
6 297 runs  6 297 ✅ 0 💤 0 ❌

Results for commit f0f7245.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 60.86%. Comparing base (854b0d8) to head (f0f7245).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3453   +/-   ##
=======================================
  Coverage   60.86%   60.86%           
=======================================
  Files         607      607           
  Lines       44309    44309           
  Branches       43       43           
=======================================
  Hits        26969    26969           
  Misses      17330    17330           
  Partials       10       10           

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