http(hackney): disable adapter redirects by default

Hackney 1.25.x has redirect handling issues behind CONNECT proxies and with pools.
Disable hackney-level redirects and rely on Tesla.Middleware.FollowRedirects instead.
Also default to with_body: true so redirects can be followed reliably.

lib/pleroma/http/adapter_helper/hackney.ex

@@ -6,8 +6,9 @@ defmodule Pleroma.HTTP.AdapterHelper.Hackney do
   @behaviour Pleroma.HTTP.AdapterHelper
 
   @defaults [
-    follow_redirect: true,
-    force_redirect: true
+    follow_redirect: false,
+    force_redirect: false,
+    with_body: true
   ]
 
   @spec options(keyword(), URI.t()) :: keyword()

test/pleroma/http/adapter_helper/hackney_test.exs

@@ -16,6 +16,14 @@ defmodule Pleroma.HTTP.AdapterHelper.HackneyTest do
   describe "options/2" do
     setup do: clear_config([:http, :adapter], a: 1, b: 2)
 
+    test "uses redirect-safe defaults", %{uri: uri} do
+      opts = Hackney.options([], uri)
+
+      assert opts[:follow_redirect] == false
+      assert opts[:force_redirect] == false
+      assert opts[:with_body] == true
+    end
+
     test "add proxy and opts from config", %{uri: uri} do
       opts = Hackney.options([proxy: "localhost:8123"], uri)