Update Dockerfile

Dockerfile

@@ -15,7 +15,7 @@ COPY settings.js  /usr/src/node-red/settings.js
 COPY flows.json  /usr/src/node-red/flows.json  
 
 # 安装节点
-RUN npm install -g node-red-node-email node-red-contrib-telegrambot node-red-contrib-ntfy
+RUN npm install -g node-red-node-email node-red-contrib-telegrambot @fetuffani/node-red-contrib-ntfy
 RUN npm install -g node-red-contrib-weather
 RUN npm install -g node-red-dashboard
 RUN npm install -g node-red-contrib-ui-led