updates config for server

config/dev.exs

@@ -5,7 +5,8 @@ config :bump, Bump.Repo,
   username: "postgres",
   password: "postgres",
   database: "bump_dev",
-  hostname: "tower.local",
+  hostname: "database",
+  port: 5555, 
   show_sensitive_data_on_connection_error: true,
   pool_size: 10
 

config/test.exs

@@ -9,7 +9,8 @@ config :bump, Bump.Repo,
   username: "postgres",
   password: "postgres",
   database: "bump_test#{System.get_env("MIX_TEST_PARTITION")}",
-  hostname: "tower.local",
+  hostname: "database",
+  port: 5555,
   pool: Ecto.Adapters.SQL.Sandbox,
   pool_size: 10