gh: Incorrect %goipath

[Maxwell G]

Hi everyone,

I recently became a co-maintainer of gh, and I noticed that the package's `%goipath`
is incorrectly set to `github.com/cli/cli` when, according to the go.mod, it should be
`github.com/cli/cli/v2`. How should I go about correcting this? We have overridden the
package's `%goname` to `gh`, so I can correct the `%goipath` without again having to
go through the review process, but the `%godevelname` will change from
`golang-github-cli-devel` to `golang-github-cli-2-devel`. Besides obsoleting the old
package (see below), is there anything else I need to do?

```
%global godevelheader   %{expand:
Obsoletes:              golang-github-cli-devel < 2.4.0-3
}
```

Thank you for your input,
Maxwell
-- 
Maxwell G (@gotmax23)
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