Make repositories arch-aware

Introduce an arch field that can be used to filter repositories based on
the local architecture.

If arch is provided and matching with the current GOARCH then the
repository is enabled

cmd/reclaim.go

@@ -40,16 +40,6 @@ It scans the target file system, and if finds a match with a package available i
 	Run: func(cmd *cobra.Command, args []string) {
 		util.SetSystemConfig()
 
-		// This shouldn't be necessary, but we need to unmarshal the repositories to a concrete struct, thus we need to port them back to the Repositories type
-		repos := installer.Repositories{}
-		for _, repo := range LuetCfg.SystemRepositories {
-			if !repo.Enable {
-				continue
-			}
-			r := installer.NewSystemRepository(repo)
-			repos = append(repos, r)
-		}
-
 		force := LuetCfg.Viper.GetBool("force")
 
 		Debug("Solver", LuetCfg.GetSolverOptions().CompactString())
@@ -58,8 +48,8 @@ It scans the target file system, and if finds a match with a package available i
 			Concurrency:                 LuetCfg.GetGeneral().Concurrency,
 			Force:                       force,
 			PreserveSystemEssentialData: true,
+			PackageRepositories:         LuetCfg.SystemRepositories,
 		})
-		inst.Repositories(repos)
 
 		system := &installer.System{Database: LuetCfg.GetSystemDB(), Target: LuetCfg.GetSystem().Rootfs}
 		err := inst.Reclaim(system)