Upgrading version to 2.0-rc2.

Author: u-less

src/Directory.Build.props

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <TargetFrameworks>netcoreapp2.2;netcoreapp3.0</TargetFrameworks>
     <LangVersion>latest</LangVersion>
-    <Version>2.0-rc1</Version>
+    <Version>2.0-rc2</Version>
     <PackageProjectUrl>https://github.com/RayTale/Ray</PackageProjectUrl>
     <RepositoryUrl>https://github.com/RayTale/Ray.git</RepositoryUrl>
     <LICENSE>https://github.com/RayTale/Ray/blob/master/LICENSE</LICENSE>

src/Ray.Storage.PostgreSQL/Ray.Storage.PostgreSQL.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <ItemGroup>
     <PackageReference Include="Dapper" Version="2.0.4" />
-    <PackageReference Include="Npgsql" Version="4.0.9" />
+    <PackageReference Include="Npgsql" Version="4.0.10" />
   </ItemGroup>
 
   <ItemGroup>