Cloud fix remote embl datasets

[ap--]

Run remote tests against real remote datasets.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.08%. Comparing base (d9e4eac) to head (1ae94c7).

Additional details and impacted files

@@            Coverage Diff             @@
##            cloud     #904      +/-   ##
==========================================
+ Coverage   92.01%   92.08%   +0.06%     
==========================================
  Files          48       48              
  Lines        7468     7468              
==========================================
+ Hits         6872     6877       +5     
+ Misses        596      591       -5     

Files with missing lines	Coverage Δ
src/spatialdata/_io/_utils.py	87.77% <100.00%> (+1.25%)	⬆️
src/spatialdata/_io/format.py	88.39% <100.00%> (+0.06%)	⬆️

... and 2 files with indirect coverage changes

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