[devops] remove NuGet package upload from GitHub release workflow

Author: i4004

.github/workflows/build.yml

@@ -56,12 +56,6 @@ jobs:
     steps:
       - uses: actions/checkout@v7
 
-      - name: Download packages
-        uses: actions/download-artifact@v7
-        with:
-          name: Packages
-          path: packages
-
       - name: Extract changelog entry
         run: |
           awk '/^## \[/{if(f) exit; f=1; next} f' \
@@ -74,5 +68,4 @@ jobs:
         run: |
           gh release create "${{ github.ref_name }}" \
             --title "${{ github.ref_name }}" \
-            --notes-file /tmp/release_notes.md \
-            packages/*.nupkg
+            --notes-file /tmp/release_notes.md