Updated to Cofoundry v0.5 release

Author: HeyJoel

src/Cofoundry.Plugins.Mail.SendGrid/Cofoundry.Plugins.Mail.SendGrid.csproj

@@ -16,8 +16,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Cofoundry.Core" Version="0.5.0-beta0026" />
-    <PackageReference Include="Sendgrid" Version="9.9.0" />
+    <PackageReference Include="Cofoundry.Core" Version="0.5.0" />
+    <PackageReference Include="Sendgrid" Version="9.10.0" />
   </ItemGroup>
 
 </Project>