chore(backend): update dependency flow to v1

apps/core/mix.exs

@@ -76,7 +76,7 @@ defmodule Core.MixProject do
       {:bamboo, "~> 2.0"},
       {:parallax, "~> 1.0"},
       {:bourne, "~> 1.1"},
-      {:flow, "~> 0.15.0"},
+      {:flow, "~> 1.2.0"},
       {:joken, "~> 2.5.0"},
       {:guardian, "~> 1.2.1"},
       {:arc, "~> 0.11.0"},

mix.lock

@@ -60,8 +60,8 @@
   "excoveralls": {:hex, :excoveralls, "0.15.2", "809c1016660d80b28bbcd8cb7fd761791300def53345c1af5bd97db1330619ad", [:mix], [{:hackney, "~> 1.16", [hex: :hackney, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "f359dda36f15ae885d3259a90919b09ae9318f37c583c403493fe23808b2b882"},
   "file_system": {:hex, :file_system, "0.2.10", "fb082005a9cd1711c05b5248710f8826b02d7d1784e7c3451f9c1231d4fc162d", [:mix], [], "hexpm", "41195edbfb562a593726eda3b3e8b103a309b733ad25f3d642ba49696bf715dc"},
   "finch": {:hex, :finch, "0.13.0", "c881e5460ec563bf02d4f4584079e62201db676ed4c0ef3e59189331c4eddf7b", [:mix], [{:castore, "~> 0.1", [hex: :castore, repo: "hexpm", optional: false]}, {:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.3", [hex: :mint, repo: "hexpm", optional: false]}, {:nimble_options, "~> 0.4.0", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:nimble_pool, "~> 0.2.6", [hex: :nimble_pool, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "49957dcde10dcdc042a123a507a9c5ec5a803f53646d451db2f7dea696fba6cc"},
-  "flow": {:hex, :flow, "0.15.0", "503717c0e367b5713336181d5305106840f64abbad32c75d7af5ef1bb0908e38", [:mix], [{:gen_stage, "~> 0.14.0", [hex: :gen_stage, repo: "hexpm", optional: false]}], "hexpm", "d7ecbd4dd38a188494bc996d5014ef8335f436a0b262140a1f6441ae94714581"},
-  "gen_stage": {:hex, :gen_stage, "0.14.3", "d0c66f1c87faa301c1a85a809a3ee9097a4264b2edf7644bf5c123237ef732bf", [:mix], [], "hexpm", "8453e2289d94c3199396eb517d65d6715ef26bcae0ee83eb5ff7a84445458d76"},
+  "flow": {:hex, :flow, "1.2.4", "1dd58918287eb286656008777cb32714b5123d3855956f29aa141ebae456922d", [:mix], [{:gen_stage, "~> 1.0", [hex: :gen_stage, repo: "hexpm", optional: false]}], "hexpm", "874adde96368e71870f3510b91e35bc31652291858c86c0e75359cbdd35eb211"},
+  "gen_stage": {:hex, :gen_stage, "1.2.1", "19d8b5e9a5996d813b8245338a28246307fd8b9c99d1237de199d21efc4c76a1", [:mix], [], "hexpm", "83e8be657fa05b992ffa6ac1e3af6d57aa50aace8f691fcf696ff02f8335b001"},
   "gen_state_machine": {:hex, :gen_state_machine, "2.1.0", "a38b0e53fad812d29ec149f0d354da5d1bc0d7222c3711f3a0bd5aa608b42992", [:mix], [], "hexpm", "ae367038808db25cee2f2c4b8d0531522ea587c4995eb6f96ee73410a60fa06b"},
   "gettext": {:hex, :gettext, "0.20.0", "75ad71de05f2ef56991dbae224d35c68b098dd0e26918def5bb45591d5c8d429", [:mix], [], "hexpm", "1c03b177435e93a47441d7f681a7040bd2a816ece9e2666d1c9001035121eb3d"},
   "goldrush": {:hex, :goldrush, "0.1.9", "f06e5d5f1277da5c413e84d5a2924174182fb108dabb39d5ec548b27424cd106", [:rebar3], [], "hexpm", "99cb4128cffcb3227581e5d4d803d5413fa643f4eb96523f77d9e6937d994ceb"},