build(deps): bump node from 18-alpine to 20-alpine in /build (#2131)

Bumps node from 18-alpine to 20-alpine.

---
updated-dependencies:
- dependency-name: node
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:18-alpine@sha256:1ccc70acda680aa4ba47f53e7c40b2d4d6892de74817128e0662d32647dd7f4d
+FROM node:20-alpine@sha256:4559bc033338938e54d0a3c2f0d7c3ad7d1d13c28c4c405b85c6b3a26f4ce5f7
 
 ARG UID=1000
 ARG GID=1000