refactor: use global fixtures

[12rambau]

Fix #126

[codecov]

Codecov Report

Attention: 73 lines in your changes are missing coverage. Please review.

Comparison is base (6fa4b43) 0.00% compared to head (ddd9be3) 0.00%.
Report is 5 commits behind head on main.

❗ Current head ddd9be3 differs from pull request most recent head c354fc5. Consider uploading reports for the commit c354fc5 to get more accurate results

Files	Patch %	Lines
geetools/algorithms.py	0.00%	16 Missing ⚠️
geetools/tools/imagecollection.py	0.00%	14 Missing ⚠️
geetools/tools/_deprecated_image.py	0.00%	9 Missing ⚠️
geetools/Image/__init__.py	0.00%	5 Missing ⚠️
geetools/batch/featurecollection.py	0.00%	5 Missing ⚠️
geetools/composite.py	0.00%	4 Missing ⚠️
geetools/tools/_deprecated_featurecollection.py	0.00%	3 Missing ⚠️
geetools/_deprecated_visualization.py	0.00%	2 Missing ⚠️
geetools/batch/image.py	0.00%	2 Missing ⚠️
geetools/tools/_deprecated_element.py	0.00%	2 Missing ⚠️
... and 11 more

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #161   +/-   ##
=====================================
  Coverage   0.00%   0.00%           
=====================================
  Files         52      52           
  Lines       2919    2919           
=====================================
  Misses      2919    2919           

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