SNOW-1473274 Sign assembly only when releasing (#974)

### Description
SNOW-1473274 Sign assembly only when releasing

### Checklist
- [x] Code compiles correctly
- [x] Code is formatted according to [Coding
Conventions](../blob/master/CodingConventions.md)
- [x] Created tests which fail without the change (if possible)
- [x] All tests passing (`dotnet test`)
- [x] Extended the README / documentation, if necessary
- [x] Provide JIRA issue id (if possible) or GitHub issue id in PR name

Author: sfc-gh-knozderko

Snowflake.Data.Tests/Snowflake.Data.Tests.csproj

@@ -11,9 +11,6 @@
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <LangVersion>9</LangVersion>
     <DefineConstants>$(SEQUENTIAL_ENV)</DefineConstants>
-    <AssemblyOriginatorKeyFile>..\sign\publicKey.snk</AssemblyOriginatorKeyFile>
-    <SignAssembly>true</SignAssembly>
-    <DelaySign>true</DelaySign>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="JunitXml.TestLogger" Version="3.1.12" />
@@ -40,12 +37,6 @@
     <Reference Include="System.Net.Http.WebRequest" />
   </ItemGroup>
 
-  <ItemGroup>
-    <None Include="..\sign\publicKey.snk">
-      <Link>publicKey.snk</Link>
-    </None>
-  </ItemGroup>
-
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
     <DebugType>full</DebugType>
     <DebugSymbols>True</DebugSymbols>

Snowflake.Data/Snowflake.Data.csproj

@@ -15,6 +15,9 @@
     <Version>3.1.0</Version>
     <DebugType>Full</DebugType>
     <LangVersion>7.3</LangVersion>
+  </PropertyGroup>
+
+  <PropertyGroup Condition="'$(Configuration)' == 'Release'">
     <AssemblyOriginatorKeyFile>..\sign\publicKey.snk</AssemblyOriginatorKeyFile>
     <DelaySign>true</DelaySign>
     <SignAssembly>true</SignAssembly>
@@ -43,9 +46,9 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(Configuration)' != 'Release'">
-    <InternalsVisibleTo Include="Snowflake.Data.Tests,PublicKey=0024000004800000940000000602000000240000525341310004000001000100c159643cbf31e9bbbe7920091c39ecbd988b3e102df664830b33f12c9d838b07463682948cb56bbc414311fa019d6bca1dc08bc9d54684667fdd94ddf140f499ccb66795322128ba1804d8342fec912cea2704fe09c82dbf03bf10817330537d57e8177d92c205e93278245d18a84f185c53d1c5d917171c9807ac769ae9dfcb" />
+    <InternalsVisibleTo Include="Snowflake.Data.Tests" />
     <!--needed by Moq to be able to mock internal interfaces-->
-    <InternalsVisibleTo Include="DynamicProxyGenAssembly2,PublicKey=0024000004800000940000000602000000240000525341310004000001000100c547cac37abd99c8db225ef2f6c8a3602f3b3606cc9891605d02baa56104f4cfc0734aa39b93bf7852f7d9266654753cc297e7d2edfe0bac1cdcf9f717241550e0a7b191195b7667bb4f64bcb8e2121380fd1d9d46ad2d92d2d15605093924cceaf74c4861eff62abf69b9291ed0a340e113be11e6a7d3113e92484cf7045cc7" />
+    <InternalsVisibleTo Include="DynamicProxyGenAssembly2" />
   </ItemGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
@@ -68,7 +71,7 @@
     <Folder Include="Properties\" />
   </ItemGroup>
 
-  <ItemGroup>
+  <ItemGroup Condition="'$(Configuration)' == 'Release'">
     <None Include="..\sign\publicKey.snk">
       <Link>publicKey.snk</Link>
     </None>