fix worker service template

It is not properly named so it does not work for starting multiple
instances. This should fix it.

distribution/Makefile

@@ -5,18 +5,18 @@ sd-install:
 	
 sd-start:
 	systemctl start osbuild-composer.socket
-	systemctl start osbuild-worker.service
+	systemctl start osbuild-worker@1.service
 
 sd-enable:
 	systemctl enable osbuild-composer.socket
-	systemctl enable osbuild-worker.service
+	systemctl enable osbuild-worker@1.service
 
 sd-stop:
 	systemctl disable osbuild-composer.socket
 	systemctl stop osbuild-composer.socket
 	systemctl stop osbuild-composer.service
-	systemctl disable osbuild-worker.service
-	systemctl stop osbuild-worker.service
+	systemctl disable osbuild-worker@1.service
+	systemctl stop osbuild-worker@1.service
 
 user-install:
 	- mkdir -p /etc/sysusers.d/