Tolerate malformed SDMX-JSON from OECD

[khaeru]

No description provided.

[codecov]

Codecov Report

Merging #81 (cb72ba7) into main (8fc21b3) will decrease coverage by 2.06%.
The diff coverage is 100.00%.

❗ Current head cb72ba7 differs from pull request most recent head d2fad75. Consider uploading reports for the commit d2fad75 to get more accurate results

@@            Coverage Diff             @@
##             main      #81      +/-   ##
==========================================
- Coverage   97.48%   95.41%   -2.07%     
==========================================
  Files          53       53              
  Lines        4614     4628      +14     
==========================================
- Hits         4498     4416      -82     
- Misses        116      212      +96     

Impacted Files	Coverage Δ
sdmx/tests/test_sources.py	71.20% <ø> (-28.80%)	⬇️
sdmx/model.py	97.30% <100.00%> (+0.11%)	⬆️
sdmx/reader/json.py	100.00% <100.00%> (+1.25%)	⬆️
sdmx/testing.py	99.21% <100.00%> (+0.01%)	⬆️
sdmx/tests/test_model.py	100.00% <100.00%> (ø)
sdmx/source/wb_wdi.py	28.57% <0.00%> (-71.43%)	⬇️
sdmx/source/ilo.py	50.00% <0.00%> (-50.00%)	⬇️
sdmx/source/lsd.py	50.00% <0.00%> (-50.00%)	⬇️
sdmx/source/insee.py	57.14% <0.00%> (-42.86%)	⬇️
sdmx/source/istat.py	57.14% <0.00%> (-42.86%)	⬇️
... and 9 more

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