Bump MailKit and MimeKit (#665)

Bumps MailKit from 4.13.0 to 4.16.0
Bumps MimeKit from 4.15.1 to 4.16.0

---
updated-dependencies:
- dependency-name: MailKit
  dependency-version: 4.16.0
  dependency-type: direct:production
- dependency-name: MimeKit
  dependency-version: 4.16.0
  dependency-type: direct:production
...

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Author: dependabot[bot]

HwProj.NotificationsService/HwProj.NotificationsService.API/HwProj.NotificationsService.API.csproj

@@ -10,9 +10,9 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="MailKit" Version="4.13.0" />
+    <PackageReference Include="MailKit" Version="4.16.0" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="9.0.9" />
-    <PackageReference Include="MimeKit" Version="4.15.1" />
+    <PackageReference Include="MimeKit" Version="4.16.0" />
   </ItemGroup>
 
   <ItemGroup>