Setup automation to generate OSS licenses used with `go-licenses`

[andyfeller]

Overview

Being an open source project, gh-dependency-report should generate and
present information about the licenses of its dependencies in order to be a
good OSS citizen.

This issue is to implement GitHub Actions workflow to compile this information
using google/go-licenses being a
Go-based CLI extension.

Action Items

Tasks

Beta Give feedback

1. Implement workflow that generates Go license information and commits to repository