Bump MimeKit from 4.11.0 to 4.16.0

---
updated-dependencies:
- dependency-name: MimeKit
  dependency-version: 4.16.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

context.tests/context.tests.csproj

@@ -74,9 +74,9 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
-    <PackageReference Include="MimeKit" Version="4.11.0" />
+    <PackageReference Include="MimeKit" Version="4.16.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
-    <PackageReference Include="MimeKit" Version="4.11.0" />
+    <PackageReference Include="MimeKit" Version="4.16.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.0.2">
       <PrivateAssets>all</PrivateAssets>

context/context.csproj

@@ -33,7 +33,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="MimeKit" Version="4.11.0" />
+    <PackageReference Include="MimeKit" Version="4.16.0" />
   </ItemGroup>
 
   <ItemGroup>