chore: add coverage upload to Codecov

[philprime]

• Adds a Codecov configuration file with some default values. See the codecov.yml for comments on the select values.
• Adds the Codecov GitHub-Action to the job_test and job_e2e_test
• The coverage upload is configured not to fail the CI on error
• The two upload steps are marked as unit-tests and e2e-tests so they should show up individually in Codecov

#skip-changelog

[Lms24]

Before we merge this, would you mind leaving a line or two in the PR description about what specifically we configured? thanks!

[Lms24]

Are you planning adding the upload of coverage reports in a follow-up PR?

[philprime]

@Lms24 thanks for pointing out that the upload of coverage is missing. I'll add it and update the PR description accordingly

[codecov]

Welcome to Codecov 🎉

Once you merge this PR into your default branch, you're all set! Codecov will compare coverage reports and display results in all future pull requests.

Thanks for integrating Codecov - We've got you covered ☂️

[philprime]

@Lms24 git is not doing what I want today, it committed the generated assets from the e2e tests.

[Lms24]

Thanks for making the changes!