openapi2jsonschema gives errors in bunch of places but exits with no error

While this generation is happening we see errors in bunch of places
```console
$ docker run -v `pwd`:/data:Z surajd/kedgeschema
...

+openapi2jsonschema --strict output.json -o schema/ --stand-alone
Downloading schema
Parsing schema
Generating shared definitions
Generating individual schemas
Processing nonresourceattributes
Generating nonresourceattributes.json
Processing rollbackconfig
Generating rollbackconfig.json
Processing podsecuritypolicylist
Generating podsecuritypolicylist.json
...

Processing deploymentspecmod
Generating deploymentspecmod.json
An error occured processinng deploymentspecmod:
Processing localvolumesource
Generating localvolumesource.json
Processing horizontalpodautoscaler
Generating horizontalpodautoscaler.json
Processing replicationcontroller
Generating replicationcontroller.json
...

```

But the exit code is zero. So this is not counted as failed condition.