Bump BlazorSortable from 5.2.1 to 6.0.0

---
updated-dependencies:
- dependency-name: BlazorSortable
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

ErsatzTV/ErsatzTV.csproj

@@ -31,7 +31,7 @@
     <ItemGroup>
         <!-- <PackageReference Include="EntityFrameworkProfiler.Appender" Version="6.0.6049" /> -->
         <PackageReference Include="Blazored.FluentValidation" Version="2.2.0" />
-        <PackageReference Include="BlazorSortable" Version="5.2.1" />
+        <PackageReference Include="BlazorSortable" Version="6.0.0" />
         <PackageReference Include="Chronic.Core" Version="0.4.0" />
         <PackageReference Include="FluentValidation" Version="12.1.1" />
         <PackageReference Include="FluentValidation.AspNetCore" Version="11.3.1" />