Add GitHub Action for Releasing to NuGet

[michaelosthege]

I found this to be quite useful for another project. The pipeline is largely copied from https://github.com/michaelosthege/hagelkorn/blob/master/.github/workflows/release.yml#L48-L66

All you need to add is a repository secret in the GitHub repository settings:

Then you can make new releases by creating them in GitHub. No need to run any CLI things by hand.

Disclaimer: I'm secretely hoping that this helps you @josephwoodward to make a new release, since I'm blocked by #46 that I hope could go away with a new version.

[josephwoodward]

Oh fantastic! Thanks for this, it'll definitely help me get changes deployed sooner.

[josephwoodward]

@michaelosthege Something's wrong with the configuration, I saw seeing the following issue which seems to be to do with the version number:

Version Filepath: src/Serilog.Sinks.Loki/Serilog.Sinks.Loki.csproj
Version Regex: /^\s*<Version>(.*)<\/Version>\s*$/m
Error: 😭 unable to extract version info!
/home/runner/work/_actions/brandedoutcast/publish-nuget/v2/index.js:23
        throw new Error(msg)
        ^

None-the-less, I've manually published a new version of the package and will try and get this working ready for the next release.

Thanks for doing this.

[michaelosthege]

Looks like the action has a regex pattern to match the version number, but it does not match 4.0.0-beta1 Release.