Fix issue that OpenAPI specification had errors when validating it against Swagger/OpenAPI schema and Swagger/OpenAPI spec

[delopst]

HAPI Fhir OpenAPI specification has errors when validating it against Swagger/OpenAPI schema and Swagger/OpenAPI spec (https://apitools.dev/swagger-parser/online/).

With this commit, validation is passing.

[jamesagnew]

Thanks for the contribution!

[jamesagnew]

I've marked for approval, but I do note that several OpenAPI unit tests are failing so this probably needs a bit of cleanup before it can be merged. Thanks!

[delopst]

I see. The problem was that there was already a different swagger version in the root pom.
I have consolidated them. At least locally the ServerDstu3Test that was failing before is now passing.

[delopst]

It seems like the tests are passing now. @jamesagnew this can probably be merged now?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (2f5ffe7) 81.32% compared to head (5447c57) 83.32%.
Report is 415 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #5465      +/-   ##
============================================
+ Coverage     81.32%   83.32%   +2.00%     
- Complexity    23650    26667    +3017     
============================================
  Files          1425     1646     +221     
  Lines         86399   103158   +16759     
  Branches      11677    13121    +1444     
============================================
+ Hits          70265    85961   +15696     
- Misses        10947    11558     +611     
- Partials       5187     5639     +452     

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[jamesagnew]

Thanks for the contribution! This will be in release 7.0.0, and should appear in snapshot builds tomorrow