chore: bump node from 16.3.0-alpine to 16.4.2-alpine

Bumps node from 16.3.0-alpine to 16.4.2-alpine.

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

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

Dockerfile

@@ -617,7 +617,7 @@ RUN prototool lint --protoc-bin-path=/toolchain/bin/protoc --protoc-wkt-path=/to
 
 # The markdownlint target performs linting on Markdown files.
 
-FROM node:16.3.0-alpine AS lint-markdown
+FROM node:16.4.2-alpine AS lint-markdown
 RUN apk add --no-cache findutils
 RUN npm i -g markdownlint-cli@0.23.2
 RUN npm i -g textlint@11.7.6