Integrate OpenSSF with repo to improve security score (currently 4.9 out of 10)

[nitrocode]

In light of the recent tj-actions events, it would be nice to improve this score so users feel safer when using it.

https://scorecard.dev/viewer/?uri=github.com/trstringer/manual-approval

[![OpenSSF Scorecard](https://api.scorecard.dev/projects/github.com/trstringer/manual-approval/badge)](https://scorecard.dev/viewer/?uri=github.com/trstringer/manual-approval)

https://scorecard.dev/

This can be used to automatically create a single PR to resolve a lot of issues. Needs to be run with someone with a maintainer or higher status on the repo I believe.

https://app.stepsecurity.io/securerepo?repo=https://github.com/trstringer/manual-approval