Bump MailKit to 4.8.0 and Microsoft.Data.SqlClient to 2.1.7

Closes #3951

src/Directory.Packages.props

@@ -17,8 +17,9 @@
     <PackageVersion Include="Ical.Net" Version="4.3.1" />
     <PackageVersion Include="ImpromptuInterface" Version="7.0.1" />
     <PackageVersion Include="LazyCache" Version="2.4.0" />
-    <PackageVersion Include="Mailkit" Version="3.6.0" />
+    <PackageVersion Include="Mailkit" Version="4.8.0" />
     <PackageVersion Include="Microsoft.AspNetCore.SignalR.Client" Version="6.0.35" />
+    <PackageVersion Include="Microsoft.Data.SqlClient" Version="2.1.7" />
     <PackageVersion Include="Microsoft.Extensions.Caching.Memory" Version="6.0.2" />
     <PackageVersion Include="Microsoft.Extensions.Configuration" Version="6.0.1" />
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="6.0.1" />

src/NzbDrone.Core/Readarr.Core.csproj

@@ -6,6 +6,7 @@
     <PackageReference Include="Dapper" />
     <PackageReference Include="Diacritical.Net" />
     <PackageReference Include="LazyCache" />
+    <PackageReference Include="Microsoft.Data.SqlClient" />
     <PackageReference Include="Polly" />
     <PackageReference Include="System.Text.Json" />
     <PackageReference Include="System.Text.Encoding.CodePages" />