Bump net-http-persistent to 3.0.1

* Adds an extra artifice task to vendorize new `connection_pool`
dependency.

* Cherry-pick's needed Windows fix not yet merged into master branch of
`net-http-persistent`.

* Update bundler usages to be compatible with the new version, and fix
unit specs.

1 files changed, 2 insertions, 2 deletions

diff --git a/spec/bundler/vendored_persistent_spec.rb b/spec/bundler/vendored_persistent_spec.rb
index c760c067e0..b4d68c2ea0 100644
--- a/spec/bundler/vendored_persistent_spec.rb
+++ b/spec/bundler/vendored_persistent_spec.rb
@@ -5,13 +5,13 @@ require "bundler/vendored_persistent"
 RSpec.describe Bundler::PersistentHTTP do
   describe "#warn_old_tls_version_rubygems_connection" do
     let(:uri) { "https://index.rubygems.org" }
-    let(:connection) { instance_double(subject.http_class) }
+    let(:connection) { instance_double(Bundler::Persistent::Net::HTTP::Persistent::Connection) }
     let(:tls_version) { "TLSv1.2" }
     let(:socket) { double("Socket") }
     let(:socket_io) { double("SocketIO") }
 
     before do
-      allow(connection).to receive(:use_ssl?).and_return(!tls_version.nil?)
+      allow(connection).to receive_message_chain(:http, :use_ssl?).and_return(!tls_version.nil?)
       allow(socket).to receive(:io).and_return(socket_io) if socket
       connection.instance_variable_set(:@socket, socket)