fix: manual cbuildwheel steps (until action is in marketplace)

[codecov[bot]]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.10% :tada:

Comparison is base (7d0108f) 92.79% compared to head (dc2e501) 92.90%. Report is 3 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #28 +/- ## ========================================== + Coverage 92.79% 92.90% +0.10% ========================================== Files 6 6 Lines 972 972 ========================================== + Hits 902 903 +1 + Misses 70 69 -1 ``` | [Files Changed](https://app.codecov.io/gh/martibosch/pylandstats/pull/28?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Mart%C3%AD+Bosch) | Coverage Δ | | |---|---|---| | [pylandstats/zonal.py](https://app.codecov.io/gh/martibosch/pylandstats/pull/28?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Mart%C3%AD+Bosch#diff-cHlsYW5kc3RhdHMvem9uYWwucHk=) | `83.58% <100.00%> (ø)` | | ... and [1 file with indirect coverage changes](https://app.codecov.io/gh/martibosch/pylandstats/pull/28/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Mart%C3%AD+Bosch)

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