chore(ci): speed up docker build (#3070)

Author: yashmehrotra

.github/workflows/publish.yaml

@@ -39,9 +39,14 @@ jobs:
             build_args: |
               APP_DEPLOYMENT=INCIDENT_MANAGER
               WITHOUT_AUTH=false
-    uses: flanksource/action-workflows/.github/workflows/publish-docker-image.yml@main
+    uses: flanksource/action-workflows/.github/workflows/publish-docker-image.yml@d8fee444922a72525e94481babc8304bcbe32e2d
     with:
       platforms: linux/amd64,linux/arm64
+      buildx_driver: cloud
+      buildx_endpoint: flanksource/node
+      buildx_install: true
+      cache_from: ""
+      cache_to: ""
       login_to_ecr: true
       image_tags: |
         flanksource/${{ matrix.image }}:latest

Dockerfile

@@ -3,7 +3,7 @@ WORKDIR /app
 
 # Install dependencies based on the preferred package manager
 COPY package.json package-lock.json* .npmrc ./
-RUN npm ci
+RUN --mount=type=cache,target=/root/.npm npm ci --prefer-offline
 
 # Rebuild the source code only when needed
 FROM node:22.14@sha256:bac8ff0b5302b06924a5e288fb4ceecef9c8bb0bb92515985d2efdc3a2447052 AS builder