chore: Adjust Travis CI to work again

[JF-Cozy]

Several fixes here:

• use puppeteer-core instead of puppeteer to avoid installing Chrome when installing node_modules (which caused a timeout)
• you need to use node 18 to do this, but there's an SSL bug bypassed with the --openssl-legacy-provider option
• as Chrome is not installed by default, we install it with addons in Travis script, and you need to specify its path when running puppeteer
• we separate the installation of node_modules in a particular job, so that we can use the cache and avoid installing them at the start of each job

[cozy-bot]

:tada: This PR is included in version 111.6.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: