add package lock files for | add prop in targets | update action (#3071)

* add package lock files for | add prop in targets | update action

* oh so you can use netfx reference assemblies even on windows

.github/workflows/dotnet.yml

@@ -41,7 +41,7 @@ jobs:
             run: echo "Suffix=$(date +'%Y%m%d')-${{ github.run_number }}" >> $GITHUB_ENV
 
           - name: Restore
-            run: dotnet restore ./Discord.Net.sln -v minimal --locked-mode /p:RestorePackagesWithLockFile=true
+            run: dotnet restore ./Discord.Net.sln -v minimal --locked-mode
 
           - name: Build
             run: dotnet build "Discord.Net.sln" -v minimal -c Release --no-restore /p:BuildNumber=${{ env.Suffix }} /p:IsTagBuild=${{ env.IsTagBuild }}