Bump Microsoft.AspNetCore.Server.Kestrel from 2.3.11 to 2.3.12

---
updated-dependencies:
- dependency-name: Microsoft.AspNetCore.Server.Kestrel
  dependency-version: 2.3.12
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

UET/Directory.Packages.props

@@ -12,7 +12,7 @@
     <!-- System libraries whose version is tied with framework version -->
     <PackageVersion Include="AWSSDK.S3" Version="4.0.102" />
     <PackageVersion Include="Cronos" Version="0.13.0" />
-    <PackageVersion Include="Microsoft.AspNetCore.Server.Kestrel" Version="2.3.11" />
+    <PackageVersion Include="Microsoft.AspNetCore.Server.Kestrel" Version="2.3.12" />
     <PackageVersion Include="Microsoft.AspNetCore.WebSockets" Version="2.3.12" />
     <PackageVersion Include="Microsoft.Data.Sqlite.Core" Version="$(MicrosoftPackageVersion)" />
     <PackageVersion Include="Microsoft.Dism" Version="6.0.0" />