[Bug]: swagger 2 specs 'produces' keyword not interpreted by openapi generator

[mrednic-1A]

Package name

schematics

Package version

9.6

Reproduction steps

generate an sdk starting from a spec file in swagger 2, having 'produces' keyword for the operations or globally, with a value different from 'application/json'.

Current result

the generation of the operation method inside the api class will have inside the metadata.headerAccept defaulting to 'application/json' instead of the value set in 'produces' in the specs.

Expected result

the default value should be the one set in 'produces'.
To be checked if we still want to support swagger 2 specs with the generator. If not, then the solution proposed will be the migration of the specs to open api v3. Double check if with v3 the headerAccept if well generated.

Additional comments

No response