Bump MailKit from 4.7.1.1 to 4.8.0 (#827)

Bumps [MailKit](https://github.com/jstedfast/MailKit) from 4.7.1.1 to 4.8.0.
- [Changelog](https://github.com/jstedfast/MailKit/blob/master/ReleaseNotes.md)
- [Commits](jstedfast/MailKit@4.7.1.1...4.8.0)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Directory.Packages.props

@@ -15,7 +15,7 @@
     <PackageVersion Include="FastEndpoints.Swagger" Version="5.30.0" />
     <PackageVersion Include="FastEndpoints.Swagger.Swashbuckle" Version="2.2.0" />
     <PackageVersion Include="FluentAssertions" Version="6.12.1" />
-    <PackageVersion Include="MailKit" Version="4.7.1.1" />
+    <PackageVersion Include="MailKit" Version="4.8.0" />
     <PackageVersion Include="MediatR" Version="12.4.1" />
     <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.8" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.InMemory" Version="8.0.8" />