T7407: fix the incorrect url for arm64 salt pkgs

Signed-off-by: Date Huang <[email protected]>

Author: tjjh89017

data/architectures/arm64.toml

@@ -6,7 +6,7 @@ bootloaders = "grub-efi"
 
 [additional_repositories.salt]
   architecture = "arm64"
-  url =	"https://packages.vyos.net/saltproject/debian/11/amd64/3005"
+  url =	"https://packages.vyos.net/saltproject/debian/11/arm64/3005"
   distribution = "bullseye"
 
 [additional_repositories.zabbix]