Update betarelease.yml

Author: maxijabase

.github/workflows/betarelease.yml

@@ -30,7 +30,7 @@ jobs:
       - name: Install .NET Core
         uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: 7.0.300
+          dotnet-version: 7.0.203
 
       # Nuget
       - name: Restore NuGet packages