Fix usage of FOS QueryParam::getKey() that is protected since 1.8
Fix usage of FOS QueryParam::getKey() that is protected since 1.8

EXSyst/ApiDocBundle,zquintana/LaraSwag,zquintana/LaraSwag,nelmio/NelmioApiDocBundle,zquintana/LaraSwag,nelmio/NelmioApiDocBundle,zquintana/LaraSwag,nelmio/NelmioApiDocBundle