build: fix gitops workflow to avoid building wheels in push to main

[martibosch]

No description provided.

[codecov]

Codecov Report

Attention: 6 lines in your changes are missing coverage. Please review.

Comparison is base (7d0108f) 92.79% compared to head (0013b64) 94.40%.
Report is 20 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #44      +/-   ##
==========================================
+ Coverage   92.79%   94.40%   +1.61%     
==========================================
  Files           6        6              
  Lines         972      930      -42     
==========================================
- Hits          902      878      -24     
+ Misses         70       52      -18     

Files	Coverage Δ
pylandstats/__init__.py	100.00% <100.00%> (ø)
pylandstats/landscape.py	95.07% <100.00%> (+0.18%)	⬆️
pylandstats/multilandscape.py	97.14% <100.00%> (+0.68%)	⬆️
pylandstats/settings.py	100.00% <ø> (ø)
pylandstats/spatiotemporal.py	96.37% <100.00%> (+1.69%)	⬆️
pylandstats/zonal.py	86.17% <92.94%> (+2.59%)	⬆️

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