feat: add support for node 22

BREAKING CHANGE: drop support on node 18

Author: na-ji

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:18 AS build-env
+FROM node:22 AS build-env
 COPY package.json package-lock.json /app/
 WORKDIR /app
 
@@ -8,7 +8,7 @@ RUN npm run build
 # re-install without dev dependencies
 RUN npm ci --omit=dev
 
-FROM gcr.io/distroless/nodejs:18
+FROM gcr.io/distroless/nodejs22-debian12
 COPY --from=build-env /app /rotom
 WORKDIR /rotom
 CMD ["dist/packages/server/main.js"]