Fix deprecated error

Author: synercoder

.github/workflows/dotnet-core.yml

@@ -55,7 +55,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download Artifact
-        uses: actions/download-artifact@v1
+        uses: actions/download-artifact@v4.1.7
         with:
           name: nupkg
       - name: Push to GitHub Feed
@@ -90,4 +90,4 @@ jobs:
           done
       - name: Push to NuGet Feed
         if: ${{ env.NUGET_FEED }} != ''
-        run: dotnet nuget push ./nupkg/*.nupkg --source $NUGET_FEED --skip-duplicate --api-key $NUGET_KEY
+        run: dotnet nuget push ./nupkg/*.nupkg --source $NUGET_FEED --skip-duplicate --api-key $NUGET_KEY