GitHub Packages Private Nuget

GitHubActions.yml

name: Build .Net Core projects

on:
  push:
    branches:
      - master
      - dev
  pull_request:
    branches:
      - dev

env:
  GitHubPackagesUser: <User who created the PersonalAccessToken> #Since this has to be associated with a GitHub user this should be a bot or an owner of the org
  GitHubPackagesPersonalAccessToken: ${{secrets.GitHubPackagesPersonalAccessToken}}

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - name: Setup .NET Core
        uses: actions/setup-dotnet@v1
        with:
          dotnet-version: 3.1.101
      - name: Install dependencies
        run: dotnet restore --no-cache
      - name: Build
        run: dotnet build --configuration Release --no-restore

NuGet.config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <packageSources>
    <clear />
    <add key="api.nuget.org" value="https://api.nuget.org/v3/index.json" />    
    <add key="github" value="https://nuget.pkg.github.com/<GitHubOrgName>/index.json" />
  </packageSources>
  <packageSourceCredentials>        
        <github>
            <add key="Username" value="%GitHubPackagesUser%" />            
            <add key="ClearTextPassword" value="%GitHubPackagesPersonalAccessToken%" />            
        </github>
    </packageSourceCredentials>
</configuration>