Turn on TreatWarningsAsError (#5384)

* Turn on TreatWarningsAsError for Release build

- Break Api intentionally

* Fix Api

* Treat warnings as errors no matter the configuration

src/Infrastructure.Dapper/Infrastructure.Dapper.csproj

@@ -1,5 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
+    <PropertyGroup>
+      <!-- Temp exclusions until warnings are fixed -->
+      <WarningsNotAsErrors>$(WarningsNotAsErrors);CS8618;CS4014</WarningsNotAsErrors>
+    </PropertyGroup>
+
     <ItemGroup>
       <ProjectReference Include="..\Core\Core.csproj" />
     </ItemGroup>