Feat: add SOPS to Secret Management Tools

[Kirbo]

The title says pretty much what's up:
https://github.com/getsops/sops

Previously known as Mozilla SOPS. A tool that makes storing encrypted secrets in the version control possible.

SOPS is an editor of encrypted files that supports YAML, JSON, ENV, INI and BINARY
formats and encrypts with AWS KMS, GCP KMS, Azure Key Vault, age, and PGP.
Demo: https://www.youtube.com/watch?v=YTEVyLXFiq0

[Ken-Andre]

Hi and thanks for your proposition.
Please follow the contributions guideline.