restart-workflows-fix

[DonHaul]

Issue was, the DELETE request needed a data field for it to work as we set the "Content-Type": "application/json"

Fix:
Since the requests library automatically adds "Content-Type": "application/json" if the data field is present. I removed this field from the default headers

[drjova]

Thanks, AFAIU from the docs it's only when we are using json instead of data. With a quick look, it think that's the case for us.

[drjova]

Thanks, @DonHaul since it's on backoffice could you please change the commit message to:

backoffice: workflows modification of the headers

and the we can merge

[DonHaul]

Thanks, AFAIU from the docs it's only when we are using json instead of data. With a quick look, it think that's the case for us.

You're right, I got the terms mixed up