Add livetest makefile command

[lucian-ioan]

The live flag added in this test is used to get a live response from the GitHub API.
This might prove useful as sometimes the responses can change over time.

Let me know if this implementation is alright @endorama and I will continue writing it and update the rest of the tests with it.

[elasticmachine]

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• Start Time: 2022-09-26T12:25:57.291+0000

• Duration: 3 min 35 sec

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[endorama]

There is a way to do this without the flag: by deleting the YAML test file go-vcr is going to re run the test with live data.

My reason for not adding a flag is because even if it's a really cool Go feature is easy to get confused by it and go test just fails with an error not providing enough context (will just say flag not found). The implementation is very good, but I would address this differently.

Given that in any case we need to provide guidance in the docs about this, I would provide guidance on the file removal way, maybe through a make target that does it.

[lucian-ioan]

@endorama I've added a makefile command that just deletes the testdata file in the fixtures folders.

In the original implementation I don't think the flag would have been an issue, given that it was optional. If the flag was not provided, the test would run using the recorded testdata.

The advantage of the make command is that after running it we can ensure all the future tests will be done with the new API responses, whereas the flag may or may not be used.

[endorama]

As this is a developer only change I would not include the changelog fragment.

Apart from that, lets merge this!