OVHcloud mirror: split into 4 different locations

Our anycast IP is routed to 4 different locations.
This is a follow-up to 02c8629.

mirrors.d/bhs.almalinux.mirrors.ovh.net.yml

@@ -0,0 +1,15 @@
+---
+name: bhs.almalinux.mirrors.ovh.net
+address:
+  http: http://almalinux.mirrors.ovh.net/
+  https: https://almalinux.mirrors.ovh.net/
+geolocation:
+  continent: North America
+  country: CA
+  state_province: Québec
+  city: Beauharnois
+update_frequency: 12h
+sponsor: OVHcloud
+sponsor_url: https://www.ovhcloud.com/
+email: [email protected]
+asn: 16276

mirrors.d/gra.almalinux.mirrors.ovh.net.yml

@@ -0,0 +1,15 @@
+---
+name: gra.almalinux.mirrors.ovh.net
+address:
+  http: http://almalinux.mirrors.ovh.net/
+  https: https://almalinux.mirrors.ovh.net/
+geolocation:
+  continent: Europe
+  country: FR
+  state_province: Hauts-de-France
+  city: Gravelines
+update_frequency: 12h
+sponsor: OVHcloud
+sponsor_url: https://www.ovhcloud.com/
+email: [email protected]
+asn: 16276

mirrors.d/rbx.almalinux.mirrors.ovh.net.yml

@@ -0,0 +1,15 @@
+---
+name: rbx.almalinux.mirrors.ovh.net
+address:
+  http: http://almalinux.mirrors.ovh.net/
+  https: https://almalinux.mirrors.ovh.net/
+geolocation:
+  continent: Europe
+  country: FR
+  state_province: Hauts-de-France
+  city: Roubaix
+update_frequency: 12h
+sponsor: OVHcloud
+sponsor_url: https://www.ovhcloud.com/
+email: [email protected]
+asn: 16276

mirrors.d/almalinux.mirrors.ovh.net → mirrors.d/sbg.almalinux.mirrors.ovh.net.yml

@@ -1,10 +1,13 @@
 ---
-name: almalinux.mirrors.ovh.net
+name: sbg.almalinux.mirrors.ovh.net
 address:
   http: http://almalinux.mirrors.ovh.net/
   https: https://almalinux.mirrors.ovh.net/
 geolocation:
+  continent: Europe
   country: FR
+  state_province: Grand Est
+  city: strasbourg
 update_frequency: 12h
 sponsor: OVHcloud
 sponsor_url: https://www.ovhcloud.com/