removing extra npm i npm command

deploy/policy-engine.dockerfile

@@ -12,12 +12,8 @@ RUN curl -L -o opa https://raw.githubusercontent.com/Ptroger/opa-bugfix-build/ma
 COPY package*.json ./
 COPY .npmrc ./
 
-# Update npm
-RUN npm install -g npm@latest
-
 RUN npm ci && npm cache clean --force
 
-
 # Copy the local code to the container's workspace.
 COPY packages ./packages
 COPY apps ./apps
@@ -39,6 +35,8 @@ COPY ./deploy/db-migrator.sh .
 RUN chmod +x ./db-migrator.sh
 
 # Copy built application and node_modules
+# We need node_modules to run the application and it's more efficient to copy the whole thing from the previous step
+# rather than installing it again, even though this includes devDependencies b/c it can use the cache to speed up builds unless deps change.
 COPY --from=build /usr/src/app/dist ./dist
 COPY --from=build /usr/src/app/node_modules ./node_modules
 COPY --from=build /usr/local/bin/opa /usr/local/bin/opa
@@ -49,4 +47,4 @@ ENV PORT=3010
 ENV RESOURCE_PATH=/usr/src/app/dist/apps/policy-engine/resource
 
 EXPOSE 3010
-CMD ["node", "dist/apps/policy-engine/main.js"]
+CMD ["node", "dist/apps/policy-engine/main.js"]