Fix the module definition in go.mod

[Sebatyne]

Hello,

The module definition in go.mod should contain the import path of the module, and not only the package name. Otherwise it prevents it from being "go install"ed:

$ go install github.com/ifad/clammit@latest
go: downloading github.com/ifad/clammit v0.8.1
go: github.com/ifad/clammit@latest: version constraints conflict:
github.com/ifad/clammit@v0.8.1: parsing go.mod:
module declares its path as: clammit
but was required as: github.com/ifad/clammit

Here is the relevant specification in the go definition:

• https://go.dev/doc/modules/gomod-ref#module
• https://go.dev/ref/mod#go-mod-file-module

Syntax
module module-path

module-path
The module's module path, usually the repository location from which the module can be downloaded by Go tools.

Regards,