build(docker): bump node from 21.5.0-alpine3.18 to 21.6.1-alpine3.18

Bumps node from 21.5.0-alpine3.18 to 21.6.1-alpine3.18.

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

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

Dockerfile

@@ -1,5 +1,5 @@
 # base environment
-FROM node:21.5.0-alpine3.18 as base-stage
+FROM node:21.6.1-alpine3.18 as base-stage
 RUN mkdir /app && chown -R node:node /app
 WORKDIR /app