chore(backend): update dependency finch to ~> 0.19

mix.exs

@@ -105,7 +105,7 @@ defmodule Console.MixProject do
       {:cowboy_telemetry, "~> 0.4"},
       {:telemetry_registry, "~> 0.3"},
       {:snap, "~> 0.11"},
-      {:finch, "~> 0.16"},
+      {:finch, "~> 0.19"},
       {:piazza_core, "~> 0.3.9", git: "https://github.com/michaeljguarino/piazza_core", branch: "master", override: true},
       {:flow, "~> 0.15.0"},
       {:bourne, "~> 1.1"},

mix.lock

@@ -62,7 +62,7 @@
   "hammer": {:hex, :hammer, "6.1.0", "f263e3c3e9946bd410ea0336b2abe0cb6260af4afb3a221e1027540706e76c55", [:make, :mix], [{:poolboy, "~> 1.5", [hex: :poolboy, repo: "hexpm", optional: false]}], "hexpm", "b47e415a562a6d072392deabcd58090d8a41182cf9044cdd6b0d0faaaf68ba57"},
   "hammer_plug": {:git, "https://github.com/pluralsh/hammer-plug.git", "4887091221a7addff947a9a437d2816f3ecdfd22", [branch: "runtime-config"]},
   "hash_ring": {:hex, :hash_ring, "0.4.2", "65d7e84ee911c2f07e53193711013ec9b9761c5eb180720e31224b776c98f502", [:rebar3], [], "hexpm", "c327d99b1e2af41b50e5c4803a9bee7932db2c0f39ad7854a9fdad7e42444066"},
-  "hpax": {:hex, :hpax, "1.0.0", "28dcf54509fe2152a3d040e4e3df5b265dcb6cb532029ecbacf4ce52caea3fd2", [:mix], [], "hexpm", "7f1314731d711e2ca5fdc7fd361296593fc2542570b3105595bb0bc6d0fad601"},
+  "hpax": {:hex, :hpax, "1.0.2", "762df951b0c399ff67cc57c3995ec3cf46d696e41f0bba17da0518d94acd4aac", [], [], "hexpm", "2f09b4c1074e0abd846747329eaa26d535be0eb3d189fa69d812bfb8bfefd32f"},
   "http_stream": {:hex, :http_stream, "1.0.0", "d40cc69eefb380508c01e004571159c26779902564558bffe1517a57764e019e", [:mix], [{:castore, "~> 0.1.7", [hex: :castore, repo: "hexpm", optional: true]}, {:httpoison, "~> 1.7.0", [hex: :httpoison, repo: "hexpm", optional: true]}, {:mint, "~> 1.1.0", [hex: :mint, repo: "hexpm", optional: true]}], "hexpm", "efa64a8800b7365a6e77b0647b289b9fa41fbbbb44a117c8ddc9b8c6fc69e126"},
   "httpoison": {:hex, :httpoison, "1.8.1", "df030d96de89dad2e9983f92b0c506a642d4b1f4a819c96ff77d12796189c63e", [:mix], [{:hackney, "~> 1.17", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm", "35156a6d678d6d516b9229e208942c405cf21232edd632327ecfaf4fd03e79e0"},
   "hut": {:hex, :hut, "1.4.0", "7a1238ec00f95c9ec75412587ee11ac652eca308a7f4b8cc9629746d579d6cf0", [:"erlang.mk", :rebar3], [], "hexpm", "7af8704b9bae98a336f70d9560fc3c97f15665265fa603dbd05352e63d6ebb03"},