Bump MediatR from 12.5.0 to 13.0.0

---
updated-dependencies:
- dependency-name: MediatR
  dependency-version: 13.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

src/Cnblogs.Architecture.Ddd.Domain.Abstractions/Cnblogs.Architecture.Ddd.Domain.Abstractions.csproj

@@ -14,7 +14,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="MediatR" Version="12.5.0" />
+    <PackageReference Include="MediatR" Version="13.0.0" />
   </ItemGroup>
 
 </Project>