A Docker image with all dependencies pre-installed. Just add your NPM packages (including Cypress) and run the tests. See Cypress Docker docs and Cypress CI guide.
Sample Dockerfile
FROM cypress/base:14.0.0
RUN npm install --save-dev cypress
RUN $(npm bin)/cypress verify
RUN $(npm bin)/cypress run
node version: v14.0.0
npm version: 6.14.4
yarn version: 1.22.4
debian version: 10.3
user: root