build(deps): bump node in /build/package

Bumps node from 23.5.0-alpine to 23.6.0-alpine.

---
updated-dependencies:
- dependency-name: node
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

build/package/Dockerfile

@@ -7,7 +7,7 @@ COPY internal/ ./internal/
 COPY *.go ./
 RUN make static
 
-FROM node:23.5.0-alpine AS frontend
+FROM node:23.6.0-alpine AS frontend
 WORKDIR /frontend
 COPY build/react-frontend/package.json build/react-frontend/yarn.lock ./
 RUN yarn