Gh release workflow for lnproxy binary

[nir3shprabu]

Implemented gosec, trivy and goreleaser into this workflow

• Gosec is a security tool that performs a static code analysis for Golang projects for security flaws
• Trivy is a vulnerability scanner used to scan the vulnerabilities in the docker image
• GoReleaser builds Go binaries and delivers them as fast and easily as possible

[lnproxy]

This looks awesome. Sorry, I'm too much of a boomer to properly review this stuff, but from what I can tell it seems extremely solid. If anyone else using lnproxy can comment, it would be helpful.