Fail to install Bun with Elixir 1.15 on Docker

[Wigny]

In a CI pipeline, I'm receiving the same error reported on phoenixframework/phoenix#5502, where the module :http_util is not available making the command mix bun.install fail.

** (UndefinedFunctionError) function :http_util.timestamp/0 is undefined (module :http_util is not available)
    (inets 9.0.1) :http_util.timestamp()
    (inets 9.0.1) httpc.erl:750: :httpc.handle_request/9
    (bun 1.0.0) lib/bun.ex:276: Bun.fetch_body!/1
    (bun 1.0.0) lib/bun.ex:198: Bun.install/0
    (mix 1.15.4) lib/mix/task.ex:447: anonymous fn/3 in Mix.Task.run_task/5
    (mix 1.15.4) lib/mix/task.ex:506: Mix.Task.run_alias/6
    (elixir 1.15.4) lib/enum.ex:984: Enum."-each/2-lists^foreach/1-0-"/2
    (mix 1.15.4) lib/mix/task.ex:447: anonymous fn/3 in Mix.Task.run_task/5

While I was not able to reproduce the issue locally (running our CI pipeline based on the elixir:1.15-slim image though), ensuring :inets and :ssl are available when executing the command should solve the problem.