Filter Crossref type and fix release_date naming in oa web workflow

[jdddog]

No description provided.

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.02 🎉

Comparison is base (88c0ea7) 95.77% compared to head (c0b4686) 95.79%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #167      +/-   ##
===========================================
+ Coverage    95.77%   95.79%   +0.02%     
===========================================
  Files           19       19              
  Lines         4638     4639       +1     
  Branches       621      621              
===========================================
+ Hits          4442     4444       +2     
  Misses         122      122              
+ Partials        74       73       -1     

Impacted Files	Coverage Δ
academic_observatory_workflows/model.py	97.78% <100.00%> (+0.17%)	⬆️
...observatory_workflows/workflows/oa_web_workflow.py	96.06% <100.00%> (ø)

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