chore(deps): bump node from 20.3.1-alpine to 21.4.0-alpine

Bumps node from 20.3.1-alpine to 21.4.0-alpine.

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

Signed-off-by: dependabot[bot] <support@github.com>

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:20.3.1-alpine AS client_builder
+FROM node:21.4.0-alpine AS client_builder
 
 WORKDIR /app