TLS error on OTP23 and Elixir 1.11

[frahugo]

Erlang version: 23.3.1
Elixir version: 1.11.4-otp-23

For those getting an OpenSSL error like the following:

[info] GET /feeds/ecto
[debug] Processing with DocsetApi.FeedController.show/2
  Parameters: %{"package_name" => "ecto"}
  Pipelines: [:api]
[info] TLS :client: In state :wait_cert_cr at ssl_handshake.erl:1895 generated CLIENT ALERT: Fatal - Unknown CA

{:tls_alert,
 {:unknown_ca,
  'TLS client: In state wait_cert_cr at ssl_handshake.erl:1895 generated CLIENT ALERT: Fatal - Unknown CA\n'}}
[warn] Could not download and build docset for ecto
%ArgumentError{message: "argument error"}
[info] Sent 500 in 227ms

Update all the mix packages and it should fix the error:

mix deps.update --all
mix phx.server