Update Dockerfile.dev and CI workflows to use Node 16 for prom-client compatibility

Co-authored-by: neSpecc <3684889+neSpecc@users.noreply.github.com>

Author: Copilot

.github/workflows/integration-tests.yml

@@ -10,5 +10,10 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
+      - name: Use Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version-file: '.nvmrc'
+
       - name: Run tests
         run: yarn test:integration

.github/workflows/tests.yml

@@ -9,6 +9,10 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v2
+      - name: Use Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version-file: '.nvmrc'
       - name: Install modules
         run: yarn
       - name: Run tests

docker/Dockerfile.dev

@@ -1,13 +1,13 @@
-FROM node:14.17.0-alpine as builder
+FROM node:16-alpine as builder
 
 WORKDIR /usr/src/app
-RUN apk add --no-cache git gcc g++ python make musl-dev
+RUN apk add --no-cache git gcc g++ python3 make musl-dev
 
 COPY package.json yarn.lock ./
 
 RUN yarn install
 
-FROM node:14.17.0-alpine
+FROM node:16-alpine
 
 WORKDIR /usr/src/app