fix: adds redis phing var

build.xml

@@ -34,6 +34,7 @@
                     <token key="mercure_jwt_secret" value="${MERCURE_JWT_SECRET}" />
                     <token key="jellyfin_url" value="${JELLYFIN_URL}" />
                     <token key="jellyfin_token" value="${JELLYFIN_TOKEN}" />
+                    <token key="redis_host" value="${REDIS_HOST}" />
                 </replacetokens>
             </filterchain>
         </copy>