Update .travis.yml

[joao-conde]

No test folder yet, but assumed standard path

[ripe-tobias-bot]

Woof, Woof!

Thank you @joao-conde for submitting the "Update .travis.yml" pull request 😎.

Please do not forget to review our internal guidelines:

• Review the code in the PR using a peer 🧑‍🤝‍🧑
• Make sure all the linting process has been executed an passed 👌
• Make sure unit tests are passing ✅
• Ensure that proper code standards are met 📋
• Fill in the PR's summary (issue, dependencies, decisions and GIF)
• Double-check the diff to make sure it's the absolute best solution you can come up with

Engaging in the development process in the best possible way helps it being efficient and fast.

Your friend,
Tobias (Platforme's mascot)

[ripe-tobias-bot]

Woof, Woof!

Oops! @joao-conde you may have to fix some errors:

• You either forgot to add the no-changelog label to this PR, or to log the changes in CHANGELOG.md file. Please try to fix this and then re-assign PR. ❗️
• Please specify a link to the issue or rationale in the description of the PR ❗️

Please address these issues to continue with the Pull Request merge process.

Your friend,
Tobias (Platforme's mascot)