Fix method error

[codecov[bot]]

Codecov Report

Base: 82.52% // Head: 82.52% // Decreases project coverage by -0.00% :warning:

Coverage data is based on head (3f07b75) compared to base (818918a). Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #268 +/- ## ========================================== - Coverage 82.52% 82.52% -0.01% ========================================== Files 58 58 Lines 3377 3376 -1 ========================================== - Hits 2787 2786 -1 Misses 590 590 ``` | [Impacted Files](https://codecov.io/gh/JuliaSmoothOptimizers/RipQP.jl/pull/268?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaSmoothOptimizers) | Coverage Δ | | |---|---|---| | [src/iterations/preconditioners/identity.jl](https://codecov.io/gh/JuliaSmoothOptimizers/RipQP.jl/pull/268/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaSmoothOptimizers#diff-c3JjL2l0ZXJhdGlvbnMvcHJlY29uZGl0aW9uZXJzL2lkZW50aXR5Lmps) | `100.00% <ø> (ø)` | | | [src/iterations/solve\_method.jl](https://codecov.io/gh/JuliaSmoothOptimizers/RipQP.jl/pull/268/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaSmoothOptimizers#diff-c3JjL2l0ZXJhdGlvbnMvc29sdmVfbWV0aG9kLmps) | `92.63% <100.00%> (-0.08%)` | :arrow_down: | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaSmoothOptimizers). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaSmoothOptimizers)

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