Adapter for httpc.
This is the default adapter.
NOTE Tesla overrides default autoredirect value with false to ensure consistency between adapters
NOTE :httpc accepts only a fixed set of HTTP methods, which as of
OTP 29 does not include QUERY (RFC 10008) - such requests return
{:error, :invalid_method}. The error comes from :httpc itself, so QUERY
starts working automatically on OTP versions that add support for it. Until
then, use the Hackney, Gun, Mint, or Finch adapter for QUERY requests.