[FEATURE] Pre-release nuget deploys when items get merged into main

[Baklap4]

ECS integration/library project(s) (e.g. Elastic.CommonSchema.Serilog): N/A Is your feature request related to a problem? Please describe. A feature just merged which fixes a problem for me #327 While it was merged into master a pipeline ran to create some packages, but they haven't been uploaded to nuget.org

Describe the solution you'd like nuget.org does support pre-releases, beta, release-candidates etc as so does GH actions would it be possible to do this for merges into main?

Describe alternatives you've considered Couldn't think of any.