Work CI-CD

- Replace wildcard in solution name.

***NO_CI***

Author: josesimoes

azure-pipelines.yml

@@ -27,7 +27,7 @@ jobs:
 
   variables:
     DOTNET_NOLOGO: true
-    solution: '**/*.sln'
+    solution: 'nanoFramework.System.Net.sln'
     buildPlatform: 'Any CPU'
     buildConfiguration: 'Release'
     nugetPackageName: 'nanoFramework.System.Net'