fix(tests) Make tests work with docker-based postgres

Justfile

@@ -28,7 +28,7 @@ audit:
     mix deps.audit
     mix hex.audit
 
-test:
+test: install-dependencies start-database
     mix test
 
 format:

config/test.exs

@@ -9,6 +9,7 @@ config :mv, Mv.Repo,
   username: "postgres",
   password: "postgres",
   hostname: System.get_env("TEST_POSTGRES_HOST", "localhost"),
+  port: 5000,
   database: "mv_test#{System.get_env("MIX_TEST_PARTITION")}",
   pool: Ecto.Adapters.SQL.Sandbox,
   pool_size: System.schedulers_online() * 2