Bump FsToolkit.ErrorHandling.TaskResult from 3.2.0 to 4.0.0

Bumps [FsToolkit.ErrorHandling.TaskResult](https://github.com/demystifyfp/FsToolkit.ErrorHandling) from 3.2.0 to 4.0.0.
- [Release notes](https://github.com/demystifyfp/FsToolkit.ErrorHandling/releases)
- [Changelog](https://github.com/demystifyfp/FsToolkit.ErrorHandling/blob/master/RELEASE_NOTES.md)
- [Commits](demystifyfp/FsToolkit.ErrorHandling@3.2.0...4.0.0)

---
updated-dependencies:
- dependency-name: FsToolkit.ErrorHandling.TaskResult
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

src/FSharp.Control.TaskSeq.Test/FSharp.Control.TaskSeq.Test.fsproj

@@ -54,7 +54,7 @@
     <!-- align test project with minimal required version for TaskSeq -->
     <!-- we use 6.0.3 here and not 6.0.2 because TaskResult lib requires it-->
     <PackageReference Update="FSharp.Core" Version="6.0.3" />
-    <PackageReference Include="FsToolkit.ErrorHandling.TaskResult" Version="3.2.0" />
+    <PackageReference Include="FsToolkit.ErrorHandling.TaskResult" Version="4.0.0" />
     <PackageReference Include="FsUnit.xUnit" Version="5.1.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.4.0" />
     <PackageReference Include="xunit" Version="2.4.2" />