fix: multiple tsdns containers are created

image/overlay/usr/bin/tsdns

@@ -1,6 +1,5 @@
 #!/bin/sh
 
-
 if ! docker network inspect "workspace" ; then
 	 docker network create \
 		  --attachable \
@@ -23,4 +22,5 @@ docker run -e "TS_AUTHKEY=_TS_AUTHKEY_" \
 	 -p 41641:41641/udp \
 	 -v "/data/tsdns:/tstate" \
 	 --restart unless-stopped \
+	 --name "tsdns" \
 	 ghcr.io/saltedfishclub/tsdns:latest