Update GitHub action to use separate stages

Author: nullforce

.github/workflows/build.yml

@@ -18,14 +18,20 @@ env:
   DOTNET_CLI_TELEMETRY_OPTOUT: true
 
 jobs:
+  info:
+    runs-on: ubuntu-latest
+    steps:
+    - run: echo "🎉 The job was automatically triggered by a ${{ github.event_name }} event."
+    - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted by GitHub!"
+    - run: echo "🔎 The name of your branch is ${{ github.ref }} and your repository is ${{ github.repository }}."
+
   build:
     name: Build and Test
     runs-on: ubuntu-latest
-
     steps:
       # Checks out a copy of your repository on the ubuntu-latest machine
       - name: Checkout Code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
 
@@ -43,18 +49,32 @@ jobs:
         run: dotnet pack --configuration Release --no-restore --no-build --output publish
 
       - name: Publish GitHub Artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: nuget
           path: publish/*.nupkg
 
-      # Publish NuGet packages
-      - name: Publish NuGet Package to nuget.org
-        if: github.event_name == 'pull_request' || startsWith(github.ref, 'refs/heads/main') || startsWith(github.ref, 'refs/tags/')
-        env:
-          NUGET_APIKEY: ${{ secrets.NUGET_KEY_NULLFORCE_API }}
-        run: dotnet nuget push publish/*.nupkg --api-key $NUGET_APIKEY --source https://api.nuget.org/v3/index.json
+  publish-github-package:
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+    - name: Get artifact
+      uses: actions/download-artifact@v3
+      with:
+        name: nuget
+    - name: Publish NuGet Package to GitHub Package
+      run: dotnet nuget push ./*.nupkg --api-key ${{ secrets.GITHUB_TOKEN }} --source https://nuget.pkg.github.com/${{ github.repository_owner }}/index.json
 
-      - name: Publish NuGet Package to GitHub Packages
-        if: github.event_name == 'pull_request' || startsWith(github.ref, 'refs/heads/main') || startsWith(github.ref, 'refs/tags/')
-        run: dotnet nuget push publish/*.nupkg --api-key ${{secrets.GITHUB_TOKEN}} --source https://nuget.pkg.github.com/${{github.repository_owner}}/index.json
+  publish-nuget-org:
+    if: github.ref_name == 'main'
+    runs-on: ubuntu-latest
+    needs: [build, publish-github-package]
+    steps:
+    - name: Get artifact
+      uses: actions/download-artifact@v3
+      with:
+        name: nuget
+    - name: Publish NuGet Package to nuget.org
+      env:
+        NUGET_APIKEY: ${{ secrets.NUGET_KEY_NULLFORCE_API }}
+      run: dotnet nuget push ./*.nupkg --api-key $NUGET_APIKEY --source https://api.nuget.org/v3/index.json