Fix Coveralls code coverage

[duffn]

Currently

Randomized with seed 1113
[Coveralls] Submitting to https://coveralls.io/api/v1
[Coveralls] Couldn't find a repository matching this job.
Coverage is at 98.94%.
Coverage report sent to Coveralls.

On my fork after adding the Coveralls token

Randomized with seed 57600
[Coveralls] Submitting to https://coveralls.io/api/v1
[Coveralls] Job ##8.1
[Coveralls] https://coveralls.io/jobs/101153293
Coverage is at 98.94%.
Coverage report sent to Coveralls.

• Reference a good comment: Github action workflow returns: Upload error: Couldn't find a repository matching this job. lemurheavy/coveralls-public#1613 (comment)
• coveralls-reborn using COVERALLS_REPO_TOKEN https://github.com/tagliala/coveralls-ruby-reborn/blob/e17e7c4c7776fb2f74a225905d421f01382f3f2b/lib/coveralls/configuration.rb#L22
• The service name in .coveralls.yml must be something, though in this case it doesn't have any special meaning https://docs.coveralls.io/api-reference
• NOTE: The repo token here (https://coveralls.io/github/ruby-grape/grape/settings) must be set as a secret in this repository for this to work

Closes #2061.

[dblock]

I added COVERALLS_REPO_TOKEN here.

[dblock]

Merged. Could you please check that master got coverage successfully now?

[dblock]

https://coveralls.io/jobs/101222049

[dblock]

I'm confused by what I'm seeing in https://coveralls.io/github/ruby-grape/grape. The top build now is https://coveralls.io/builds/50022726, so it looks like it doesn't add up the various tests into coverage but overwrites one with the other? The overall badge is still 99% it seems, too. So, what's our actual code coverage in tests?

[dblock]

@duffn see lemurheavy/coveralls-public#1505, maybe you'll find a solution to this?

[duffn]

I’m not intimately familiar with Coveralls, but I’ll take a look at what’s going on here.