Optimize docker image and update package

Dockerfile

@@ -1,10 +1,11 @@
-# ass Dockerfile v0.3.2
+# ass Dockerfile v0.3.3
 # authors:
 #  - tycrek <[email protected]> (https://tycrek.com/)
 #  - Zusier <[email protected]> (https://github.com/Zusier)
 
-FROM node:20.8.0
+FROM node:20.9.0-alpine
 WORKDIR /opt/ass-src/
 COPY . ./
 RUN npm i --save-dev && npm run build
 CMD npm start
+RUN rm -rf /var/cache/apk/*

dockerignore

@@ -0,0 +1,7 @@
+.github
+.gitignore
+.dockerignore
+.install
+Dockerfile
+compose.yaml
+node_modules/