Tests: Add accept header to swagger-ui retrieval test
Tests: Add accept header to swagger-ui retrieval test

gwicke/restbase,Pchelolo/restbase,wikimedia/restbase,eevans/restbase,eevans/restbase,Pchelolo/restbase,milimetric/restbase,inverno/restbase,gwicke/restbase,inverno/restbase,d00rman/restbase,milimetric/restbase,wikimedia/mediawiki-services-restbase,cscott/restbase,d00rman/restbase,cscott/restbase,wikimedia/restbase,wikimedia/mediawiki-services-restbase