fix FromAsCasing warning

(cherry picked from commit f4fe2b8)

Author: saschaszott

Dockerfile.dist

@@ -4,7 +4,7 @@
 # Test build:
 # docker build -f Dockerfile.dist -t dspace/dspace-angular:latest-dist .
 
-FROM node:18-alpine as build
+FROM node:18-alpine AS build
 
 # Ensure Python and other build tools are available
 # These are needed to install some node modules, especially on linux/arm64