Remove TravisCI and add Github Actions

[javierav]

This PR remove TravisCI and add Github Actions for tests. CC_TEST_REPORTER_ID secret need to be configured in this repo with CodeClimate Test Reporter ID.

[sandstrom]

Thanks @javierav!

I've added the secret. I don't actually have access to that code coverage account though, but since we're just reusing the existing secret, hopefully it'll work.

After this is merged, great if you can just open a dummy PR to test out that it works.

[sandstrom]

Thanks!

[javierav]

I've added the secret. I don't actually have access to that code coverage account though, but since we're just reusing the existing secret, hopefully it'll work.

It will not work because with Travis you encrypted the data and it returned a string that was stored in the .travis.yml file and then decrypted it in their systems, but in Github the secrets are saved from its web interface as raw text.

During my tests, I have registered my repo in codeclimate and in the github secrets I have put the token that CC returns to me and it has worked without problem.

Without the CC raw token, I think we will hardly be able to configure CC for this repo.

[sandstrom]

@javierav Got it!

I've signed up for code code, added this repo and added a id to secrets.

[sandstrom]

Awesome!

[javierav]

I updated PR code due to forgotten reference to old ci github action in badgets links!