Use Codecov CLI instead of Uploader

[paymand]

Codecov uploader is deprecated and the recommended tool to use is Codecov CLI. Binaries can be download from https://cli.codecov.io.
I've tested and this works fine on our CI.
We'll however need to release this as major because it has breaking changes: for example: I'm renaming uploader_version to cli_version. Also, you need to send in upload-process in args.

[paymand]

@joscha whenever you got a minute, please take a look at this PR 🙏 The changes are minimal.

[joscha]

Thank you!

[joscha]

not sure why https://github.com/apps/boomper-bot hasn't updated the README.md, yet, we'll give it a bit more time.

[paymand]

@joscha I'm adding the args and config we use for posterity. Feel free to add that to the docs if needed (as an example):

  - &codecov_plugin
    joscha/codecov#v4.0.0:
      skip_on_fail: true
      args:
        - '--auto-load-params-from=Buildkite'
        - '--verbose'
        - 'upload-process'
        - '-F $$BUILDKITE_JOB_ID'
        - '-r $BUILDKITE_ORGANIZATION_SLUG/$BUILDKITE_PIPELINE_NAME'
        - '--git-service=$BUILDKITE_PIPELINE_PROVIDER'
      docker_image: 'public.ecr.aws/docker/library/buildpack-deps:noble-scm'
      cli_version: v0.7.5

[paymand]

@joscha oops, I made a mistake here 😢 s/64/arm64

[paymand]

Typo fix here: #43

[joscha]

Do you want to update the readme as well with a 4.0.1 please? I don't think Boomper is working anymore

[paymand]

@joscha I'll update README + fix the typo in a new PR

[paymand]

Updating README here: #43