Merge !1019

Switch domainname for backup git mirror

See merge request monero-project/monero-site!1019

_data/downloads.yml

@@ -87,7 +87,7 @@
   id: source
   icon: icon-github
   cli_url: https://github.com/monero-project/monero
-  mirror1: https://git.pwned.systems/monero-project/monero
+  mirror1: https://git.xmr.pm/monero-project/monero
   cli_hash: source
   version: Bleeding edge (possibly unstable)