Update urbit app to v0.3.0 (#1304)

apps/registry.json

@@ -880,9 +880,9 @@
         "id": "urbit",
         "category": "Networking",
         "name": "Urbit",
-        "version": "0.2.0",
+        "version": "0.3.0",
         "tagline": "Run Urbit on your Umbrel",
-        "description": "Urbit is a personal server for self-sovereign personal & networked computing. Nock, a functional combinator, is built into Hoon, a system programming language, used to implement Arvo, a deterministic operating system, that communicates over Ames, a decentralized, encrypted P2P network.\n\nThis app helps you boot and manage Urbit instances on your Umbrel. It provides a simple management GUI, start and stop operations, and passes your +code through the interface.\n\nCredit to ~timluc-miptev, ~master-forwex, ~sipsen-pilser & ~rivpyl-sidfyl",
+        "description": "Urbit is a personal server for self-sovereign personal & networked computing. Nock, a functional combinator, is built into Hoon, a system programming language, used to implement Arvo, a deterministic operating system, that communicates over Ames, a decentralized, encrypted P2P network.\n\nThis app helps you boot and manage Urbit instances on your Umbrel. It provides a simple management GUI, start and stop operations, and passes your +code through the interface.\n\nIf you are interested in purchasing an L2 planet checkout: subject.network/buy\n\nCredit to ~timluc-miptev, ~master-forwex, ~sipsen-pilser & ~rivpyl-sidfyl",
         "developer": "~mopfel-winrux & ~sitful-hatred",
         "website": "https://github.com/mopfel-winrux/urbit-umbrel",
         "dependencies": [],

apps/urbit/docker-compose.yml

@@ -1,7 +1,7 @@
 version: "3.3"
 services:
   manager:
-    image: mopfelwinrux/urbit-umbrel:latest@sha256:72630ed72801d615a1ef5de0bbe0234855d7434d529542b09206a72fb4a8367c
+    image: mopfelwinrux/urbit-umbrel:v0.3.0@sha256:09ee4550be66894cc2b763d5cff9a4ed15b13a3c2a298519a857c6542069d8c7
     ports:
       - "${APP_URBIT_PORT}:8090"
       - "${APP_URBIT_P2P_PORT}:34343"