ci: pull request aren't being reported with code coverage reports

[mastersans]

I am really unsure what is up with the code coverage but the CodeCov is not being shown as the part of the pull request and the codecov report is also outdated on the repository, show for the commit 1e501f1 ,
Report: https://app.codecov.io/gh/intel/cve-bin-tool/commit/1e501f19d7b7a49b93f14cfd20b0f50e603690b4

[terriko]

I had to re-accept the terms and conditions when I logged in, so that might have solved things, or it's possible that we need to switch to using their config file: https://docs.codecov.com/docs/codecov-yaml

I think anyone could add the config file so if it doesn't start working on your next PR maybe try adding the config?