Fix github workflow to upload BouncyCastle build

With this commit the BouncyCastle build is uploaded as
DotNetLightning.Kiss and the native build is not uploaded.

Author: canndrew

.github/workflows/publish_master.yml

@@ -32,10 +32,5 @@ jobs:
       run: |
         cd $GITHUB_WORKSPACE/src/DotNetLightning.Core
         dotnet pack . -p:Configuration=Release --version-suffix date`date +%Y%m%d-%H%M`-git-`echo $GITHUB_SHA | cut -c 1-7` -p:BouncyCastle=True
-        dotnet nuget push ./bin/Release/DotNetLightning.1*.nupkg -k ${{ secrets.NUGET_API_KEY }} -s https://api.nuget.org/v3/index.json
-
-    - name: Upload nuget packages (native)
-      run: |
-        cd $GITHUB_WORKSPACE/src/DotNetLightning.Core
-        dotnet pack . -p:Configuration=Release --version-suffix date`date +%Y%m%d-%H%M`-git-`echo $GITHUB_SHA | cut -c 1-7`-${{ matrix.RID }}
         dotnet nuget push ./bin/Release/DotNetLightning.Kiss.1*.nupkg -k ${{ secrets.NUGET_API_KEY }} -s https://api.nuget.org/v3/index.json
+