Added a sops subcommand to set the SOPS_AGE_KEY automatically

1.3.0 sneaked in an arg parsing bug that only happened after pip install ## What's Changed * fix arg parsing by @tarasglek in https://github.com/tarasglek/github-to-sops/pull/19 **Full Changelog**: https://github.com/tarasglek/github-to-sops/compare/v1.3.0...v1.3.1

`github-to-sops install-binaries` makes it really easy to get started along with [changes in 1.2](https://github.com/tarasglek/github-to-sops/releases/tag/v1.2.0) ## What's Changed * install-binaries to install prereqs by @tarasglek in https://github.com/tarasglek/github-to-sops/pull/17 **Full Changelog**: https://github.com/tarasglek/github-to-sops/compare/v1.2.3...v1.3.0

Fix ssh authorized_key generation

2 commands are all you need 1. `github-to-sops import-keys > .sops.yaml` to setup your secrets 2. `github-to-sops refresh-secrets` to sync/add/remove devs/keys 3. Though you will likely need to set your github token :( ## What's Changed * huge dev ux improvements https://github.com/tarasglek/github-to-sops/pull/16 **Full Changelog**: https://github.com/tarasglek/github-to-sops/compare/v1.1.7...v1.2.0

## What's Changed * was failing when ssh key type was not specified * use more powerful user-listing api **Full Changelog**: https://github.com/tarasglek/github-to-sops/compare/v1.1.6...v1.1.7