Merge branch 'renovate/node-21.x' into 'master'

⏫ Updates Node.js to v21

See merge request pipeline-components/markdown-spellcheck!80

Dockerfile

@@ -1,6 +1,6 @@
 FROM pipelinecomponents/base-entrypoint:0.5.0 as entrypoint
 
-FROM node:20.6.1-alpine
+FROM node:21.1.0-alpine
 COPY --from=entrypoint /entrypoint.sh /entrypoint.sh
 ENTRYPOINT ["/entrypoint.sh"]
 ENV DEFAULTCMD mdspell