feat: set up deploys with fly

Signed-off-by: Amogh Lele <amogh@dyte.io>

config/prod.exs

@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 # For production, don't forget to configure the url host
 # to something meaningful, Phoenix uses this information

config/releases.exs

@@ -17,7 +17,7 @@ config :ketbin, Ketbin.Repo,
   url: database_url,
   pool_size: String.to_integer(System.get_env("POOL_SIZE") || "10"),
   cacertfile: "priv/cert.pem"
-
+  PGPASSWORD=b7gjdl5bwx8e5gf5 pg_dump -U doadmin -W -F p postgres -h db-katbin-do-user-3351914-0.b.db.ondigitalocean.com -p 25060 > katbin.sql
 secret_key_base =
   System.get_env("SECRET_KEY_BASE") ||
     raise """