pacman.conf: Sync with arch

Signed-off-by: Peter Jung <admin@ptr1337.dev>

archiso/airootfs/etc/pacman.conf

@@ -76,19 +76,16 @@ Include = /etc/pacman.d/cachyos-mirrorlist
 # repo name header and Include lines. You can add preferred servers immediately
 # after the header, and they will be used before the default mirrors.
 
-#[testing]
+#[core-testing]
 #Include = /etc/pacman.d/mirrorlist
 
 [core]
 Include = /etc/pacman.d/mirrorlist
 
-[extra]
-Include = /etc/pacman.d/mirrorlist
-
-#[community-testing]
+#[extra-testing]
 #Include = /etc/pacman.d/mirrorlist
 
-[community]
+[extra]
 Include = /etc/pacman.d/mirrorlist
 
 # If you want to run 32 bit applications on your x86_64 system,