contrib/vagrant/Vagrantfile

tests: fix test-demandimport.py on Python 3.9

Starting with Python 3.9, importing importlib.resources (indirectly) imports
the zipfile module. Therefore, the module is not suitable for the test.
Instead, we can use the ftplib module, which is very unlikely to be imported
during the test run.

# -*- mode: ruby -*-

Vagrant.configure('2') do |config|
  # Debian 10.1 x86_64 without configuration management software
  config.vm.box = "debian/buster64"
  config.vm.hostname = "tests"

  config.vm.define "tests" do |conf|
    conf.vm.provision :file, source: "run-tests.sh", destination:"run-tests.sh"
    conf.vm.provision :shell, path: "provision.sh"
    conf.vm.synced_folder "../..", "/hgshared"
  end
end