This repo needs a CI process and Authenticode signing

[samblackburn]

Raised in https://github.com/red-gate/RgCompare/pull/4760#issuecomment-3682567024 where a workaround is implemented in RgCompare

To implement CI and signing in this repo

• Create a GHA build
• Ensure the package is signed and pushed to nuget

Alternative approach

• Add this package to https://github.com/red-gate/nuget-thirdparty
• Ensure that gets built, signed and published correctly in CI

Persistent are having the same problem

• Thread on Slack

[nyctef]

@angellaa to try and find someone to work on this in #flyway-devs

[angellaa]

@ant-jones-rg kindly volunteered to work on this on the side.