Chore(deps): Bump node from 21.3.0-alpine to 21.4.0-alpine (#415)

Bumps node from 21.3.0-alpine to 21.4.0-alpine.

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

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

Dockerfile

@@ -30,7 +30,7 @@ WORKDIR /app
 #######################################
 # image for creating the documentation
 ######################################
-FROM node:21.3.0-alpine as docs
+FROM node:21.4.0-alpine as docs
 
 # install packages
 RUN apk add --update --no-cache bash make git zsh curl tmux