varnish: set vcl_reload_cmd for buster and up
varnish: set vcl_reload_cmd for buster and up

SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site