chore(deps): update dependency mediatr to 14.2.0

Author: renovate[bot]

Directory.Packages.props

@@ -55,7 +55,7 @@
     <PackageVersion Include="System.Collections.Immutable" Version="10.0.9" />
     <PackageVersion Include="System.Threading.Channels" Version="10.0.9" />
     <PackageVersion Include="Microsoft.Reactive.Testing" Version="6.1.0" />
-    <PackageVersion Include="MediatR" Version="14.1.0" />
+    <PackageVersion Include="MediatR" Version="14.2.0" />
     <PackageVersion Include="Bogus" Version="35.6.5" />
     <PackageVersion Include="Snapper" Version="2.4.1" />
     <PackageVersion Include="Xunit.SkippableFact" Version="1.5.61" />