chore(deps): update node.js to v22.21.0

Author: renovate[bot]

Dockerfile

@@ -13,7 +13,7 @@ ENV DISCORD_TOKEN=$DISCORD_TOKEN
 ENV SENTRY_DSN=$SENTRY_DSN
 
 # copy node binary from official node image
-COPY --from=node:22.20-slim@sha256:b21fe589dfbe5cc39365d0544b9be3f1f33f55f3c86c87a76ff65a02f8f5848e /usr/local/bin/node /usr/local/bin/node
+COPY --from=node:22.21-slim@sha256:f9f7f95dcf1f007b007c4dcd44ea8f7773f931b71dc79d57c216e731c87a090b /usr/local/bin/node /usr/local/bin/node
 
 # install dependencies into temp directory
 # this will cache them and speed up future builds