chore: update dependencies in package.json and Foundatio.Mediator.Tests.csproj

- Updated @types/node from ^25.0.8 to ^24.0.0
- Upgraded mermaid from ^11.12.2 to ^11.13.0
- Bumped vitepress from ^2.0.0-alpha.15 to ^2.0.0-alpha.16
- Updated vitepress-plugin-llms from ^1.10.0 to ^1.11.0
- Added overrides for vitepress-plugin-mermaid to use the current vitepress version
- Updated Foundatio.Xunit.v3 from version 13.0.0-beta3.poison-message-handling.3 to 13.0.0-beta3.13

Author: niemyjski

build/common.props

@@ -37,7 +37,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="10.0.103" PrivateAssets="All"/>
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="10.0.200" PrivateAssets="All"/>
     <PackageReference Include="AsyncFixer" Version="2.1.0" PrivateAssets="All" />
     <PackageReference Include="MinVer" Version="7.0.0" PrivateAssets="All" />
   </ItemGroup>