Use Node 16 across the project

.docker/ruby/Dockerfile

@@ -8,7 +8,7 @@ ARG GID=1000
 RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
 RUN echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list
 
-RUN curl -sL https://deb.nodesource.com/setup_14.x | bash -
+RUN curl -sL https://deb.nodesource.com/setup_16.x | bash -
 
 RUN apt-get update -qq \
     && apt-get install -y --no-install-recommends build-essential \

.github/workflows/lint.yml

@@ -43,10 +43,10 @@ jobs:
         uses: tj-actions/changed-files@v39
         with:
           files: "**/*.ts"
-      - name: Set up Node 14
+      - name: Set up Node 16
         uses: actions/setup-node@v3
         with:
-          node-version: '14'
+          node-version: '16'
           cache: 'yarn'
         if: steps.changed-files.outputs.any_changed == 'true'
       - name: Install node modules
@@ -92,10 +92,10 @@ jobs:
         uses: tj-actions/changed-files@v39
         with:
           files: "**/*.scss"
-      - name: Set up Node 14
+      - name: Set up Node 16
         uses: actions/setup-node@v3
         with:
-          node-version: '14'
+          node-version: '16'
           cache: 'yarn'
         if: steps.changed-files.outputs.any_changed == 'true'
       - name: Install node modules

.github/workflows/retrospring.yml

@@ -48,10 +48,10 @@ jobs:
         uses: ruby/setup-ruby@v1
         with:
           bundler-cache: true
-      - name: Set up Node 14
+      - name: Set up Node 16
         uses: actions/setup-node@v3
         with:
-          node-version: '14'
+          node-version: '16'
           cache: 'yarn'
       - name: Copy default configuration
         run: |