Auto merge of #4074 - rust-lang:renovate/node-16.x, r=Turbo87

Update Node.js to v16.12

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [node](https://github.com/nodejs/node) | final | minor | `16.11-alpine` -> `16.12-alpine` |

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Author: bors

frontend.Dockerfile

@@ -1,4 +1,4 @@
-FROM node:16.11-alpine
+FROM node:16.12-alpine
 
 WORKDIR /app
 COPY package.json yarn.lock /app/