Improvements to Github actions - added macOS,Windows + cron

[IgnorantSapient]

We run into issues like #45 where the CLI tool breaks for one particular OS and it is due to a bug down the dependency tree.

In order to avoid issues like this @jagger27 has made some good fixes like #43 and #40. In this PR I have

1. Added MacOs and Windows to ensure cross-platform compatibility (And to catch occurrences like Package not installing on Mac  #45).
2. Set the pipeline to run weekly on Tuesdays to notify the maintainer about failures.
3. Trimmed the string 'Test' from the name of the build stage to improve readability(The name of the tests got too long).

Tested extensively here on my fork https://github.com/IgnorantSapient/gokey/actions/runs/2659679942

[ignatk]

Thank you!