chore: update relay_only to include dev flag

Author: Arqu

netsim/sims/integration/relay_only.json

@@ -18,7 +18,7 @@
                 {
                     "name": "i_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh-transfer provide --relay-only --size=1G --relay-url=\"http://10.0.0.1:3340\"",
+                    "cmd": "./bins/iroh-transfer --dev provide --relay-only --size=1G --relay-url=\"http://10.0.0.1:3340\"",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -29,7 +29,7 @@
                 {
                     "name": "i_get",
                     "count": 1,
-                    "cmd": "time ./bins/iroh-transfer fetch --relay-only --relay-url=\"http://10.0.0.1:3340\" %s",
+                    "cmd": "time ./bins/iroh-transfer --dev fetch --relay-only --relay-url=\"http://10.0.0.1:3340\" %s",
                     "type": "public",
                     "connect": {
                         "strategy": "params",
@@ -57,7 +57,7 @@
                 {
                     "name": "i_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh-transfer provide --relay-only --size=1G --relay-url=\"http://10.0.0.1:3340\"",
+                    "cmd": "./bins/iroh-transfer --dev provide --relay-only --size=1G --relay-url=\"http://10.0.0.1:3340\"",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -68,7 +68,7 @@
                 {
                     "name": "i_get",
                     "count": 3,
-                    "cmd": "time ./bins/iroh-transfer fetch --relay-only --relay-url=\"http://10.0.0.1:3340\" %s",
+                    "cmd": "time ./bins/iroh-transfer --dev fetch --relay-only --relay-url=\"http://10.0.0.1:3340\" %s",
                     "type": "public",
                     "connect": {
                         "strategy": "params",