Update Node.js to v21

renovate[bot] · web-flow · commit ec255b606822 · 2023-11-16T17:48:59.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -1,5 +1,5 @@
 # Stage: base image
-FROM node:18.18-bullseye-slim as base
+FROM node:21.2-bullseye-slim as base
 
 ARG BUILD_NUMBER
 ARG GIT_REF
