hosts: Migrate remaining hosts to Restic

Gitea and Vaultwarden both have SQLite databases.  We'll need to add
some logic to ensure these are in a consistent state before beginning
the backup.  Fortunately, neither of them are very busy databases, so
the likelihood of an issue is pretty low.  It's definitely more
important to get backups going again sooner, and we can deal with that
later.

group_vars/bitwarden_rs.yml

@@ -5,3 +5,6 @@ burp_backup:
 
 collectd_processes:
 - name: vaultwarden
+
+restic_include:
+- /var/lib/vaultwarden/data