ci: disables treat warnings as errors

Signed-off-by: Vincent Biret <[email protected]>

Author: baywet

Directory.Build.props

@@ -8,7 +8,7 @@
     <RepositoryUrl>https://github.com/Microsoft/OpenAPI.NET</RepositoryUrl>
     <PackageProjectUrl>https://github.com/Microsoft/OpenAPI.NET.OData</PackageProjectUrl>
     <PackageReleaseNotes>https://github.com/microsoft/OpenAPI.NET.OData/releases</PackageReleaseNotes>
-    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
     <PackageIconUrl>http://go.microsoft.com/fwlink/?LinkID=288890</PackageIconUrl>
     <PackageProjectUrl>https://github.com/Microsoft/OpenAPI.NET.OData</PackageProjectUrl>
     <Copyright>© Microsoft Corporation. All rights reserved.</Copyright>