How to Implement Automatic Versioning for NuGet Package Using GitHub Actions?

name: Publish to GitHub Packages

on:
  push:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout code
      uses: actions/checkout@v2

    - name: Setup .NET Core SDK
      uses: actions/setup-dotnet@v1
      with:
        dotnet-version: '8.0.x'

    - name: Build solution
      run: dotnet build Kayki.StringUtils.sln --configuration Release

    - name: Run tests
      run: dotnet test Kayki.StringUtilsTests/Kayki.StringUtilsTests.csproj --configuration Release

    - name: Build package
      run: |
          cd Kayki.StringUtils
          dotnet build -c Release -o out
          
    - name: Publish to GitHub Packages
      run: |
          cd Kayki.StringUtils/out
          dotnet nuget push *.nupkg --api-key ${{ secrets.PKG_TOKEN }} --source https://nuget.pkg.github.com/kaykiletieri/index.json --skip-duplicate

    
    - name: Publish to NuGet.org
      run: |
        cd Kayki.StringUtils/out
        dotnet nuget push *.nupkg --api-key ${{ secrets.PKG_NUGET_TOKEN }} --source https://api.nuget.org/v3/index.json --skip-duplicate