Potential fix for code scanning alert no. 17: Workflow does not contain permissions

[asmfstatoil]

Potential fix for https://github.com/equinor/neqsim/security/code-scanning/17

To fix this issue, you should add a permissions block at the root of the workflow, directly under the workflow name and before on, so that it applies to all jobs unless a more specific block is added. By specifying permissions: contents: read, you ensure the workflow and its jobs only have read access to repository contents via the GITHUB_TOKEN (i.e., reading code, but not pushing, releasing, or writing to contents, issues, etc.), which is the least privilege necessary for all demonstrated workflow steps. No steps require write access to contents, issues, or other repository resources. Place the following YAML block right after the name: stanza, on line 2. No further modifications are necessary to the job definitions.

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 47.19%. Comparing base (0174bed) to head (1fc2332).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1637      +/-   ##
============================================
- Coverage     47.20%   47.19%   -0.01%     
+ Complexity     9150     9149       -1     
============================================
  Files           885      885              
  Lines         86913    86913              
  Branches      10966    10966              
============================================
- Hits          41028    41020       -8     
- Misses        42790    42798       +8     
  Partials       3095     3095              

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