Ensure files in S3 keep their full URIs in messages

[pnuu]

This PR makes sure that segments collected from S3 keep their full URIs. Previously the scheme and bucket name were stripped away.

[codecov[bot]]

Codecov Report

Merging #118 (78ca19b) into main (81ee9b2) will increase coverage by 0.05%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #118      +/-   ##
==========================================
+ Coverage   89.91%   89.97%   +0.05%     
==========================================
  Files          25       25              
  Lines        3680     3701      +21     
==========================================
+ Hits         3309     3330      +21     
  Misses        371      371              

Impacted Files	Coverage Δ
pytroll_collectors/segments.py	92.11% <100.00%> (-0.03%)	:arrow_down:
pytroll_collectors/tests/test_segments.py	99.27% <100.00%> (+0.02%)	:arrow_up:

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[mraspaud]

Should be just pass through everything and let downstream applications do the stripping?

[pnuu]

Maybe. This just keeps the backwards compatibility.

[mraspaud]

ok, but for consistency then? the geographic gatherer lets the uri pass through... trollflow/satpy can handle these anyway, right?

[pnuu]

Good point. Now all incoming URIs are passed as-is.