Fix MimeKit restore failure

Author: KSemenenko

Directory.Packages.props

@@ -28,7 +28,7 @@
     <PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.3" />
     <PackageVersion Include="Microsoft.Extensions.Options" Version="10.0.3" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
-    <PackageVersion Include="MimeKit" Version="4.15.0" />
+    <PackageVersion Include="MimeKit" Version="4.15.1" />
     <PackageVersion Include="Moq" Version="4.20.72" />
     <PackageVersion Include="PdfPig" Version="0.1.13" />
     <PackageVersion Include="PDFtoImage" Version="5.2.0" />
@@ -41,4 +41,4 @@
     <PackageVersion Include="xunit" Version="2.9.3" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.5" />
   </ItemGroup>
-</Project>
+</Project>