Hotfix/1.8.9

[sblauth]

Closes #100

[codecov-commenter]

Codecov Report

Merging #101 (55b026c) into main (24e6722) will increase coverage by 0.23%.
The diff coverage is 100.00%.

❗ Current head 55b026c differs from pull request most recent head 4bb2b48. Consider uploading reports for the commit 4bb2b48 to get more accurate results

@@            Coverage Diff             @@
##             main     #101      +/-   ##
==========================================
+ Coverage   94.40%   94.62%   +0.23%     
==========================================
  Files          65       64       -1     
  Lines        5531     5410     -121     
==========================================
- Hits         5221     5119     -102     
+ Misses        310      291      -19     

Impacted Files	Coverage Δ
cashocs/io/config.py	100.00% <100.00%> (ø)
...cs/_optimization/optimization_algorithms/l_bfgs.py	99.19% <0.00%> (-0.10%)	⬇️
.../optimization_algorithms/optimization_algorithm.py	92.06% <0.00%> (-0.06%)	⬇️
cashocs/_optimization/line_search/__init__.py	100.00% <0.00%> (ø)
cashocs/_optimization/line_search/line_search.py	100.00% <0.00%> (ø)
...ization/optimal_control/optimal_control_problem.py	100.00% <0.00%> (ø)
...optimization/line_search/polynomial_line_search.py
...cs/_optimization/line_search/armijo_line_search.py	98.48% <0.00%> (+0.24%)	⬆️
...n/shape_optimization/shape_optimization_problem.py	98.43% <0.00%> (+1.48%)	⬆️

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