Pumpkin can now be updated in VCC

Hello ! I've seen that the packages can't be put directly to VCC using a github link. So I've done it ! # What changes for developpement : *All the pumpkin files are in a Packages folder* # How to setup on the repository Create a repository variable with the name and value described below. For details on how to create repository variables, see [Creating Configuration Variables for a Repository](https://docs.github.com/en/actions/learn-github-actions/variables#creating-configuration-variables-for-a-repository). Make sure you are creating a repository variable, and not a repository secret. PACKAGE_NAME: the name of your package, like com.vrchat.demo-template. Finally, go to the "Settings" page for your repo, then choose "Pages", and look for the heading "Build and deployment". Change the "Source" dropdown from "Deploy from a branch" to "GitHub Actions". The package_name is : io.github.rurre.pumkinsavatartools