Revert flaky weakdeps

[codecov[bot]]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (60368d2) 92.30% compared to head (94f8519) 92.30%.

Files	Patch %	Lines
src/AutoDiff.jl	90.00%	4 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #21 +/- ## ======================================= Coverage 92.30% 92.30% ======================================= Files 7 5 -2 Lines 117 117 ======================================= Hits 108 108 Misses 9 9 ``` | [Flag](https://app.codecov.io/gh/lassepe/ParametricMCPs.jl/pull/21/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Lasse+Peters) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/lassepe/ParametricMCPs.jl/pull/21/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Lasse+Peters) | `92.30% <90.00%> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Lasse+Peters#carryforward-flags-in-the-pull-request-comment) to find out more.

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