.Net: Bump Microsoft.Extensions.TimeProvider.Testing from 8.8.0 to 8.9.1 in /dotnet (#8647)

Bumps
[Microsoft.Extensions.TimeProvider.Testing](https://github.com/dotnet/extensions)
from 8.8.0 to 8.9.1.
<details>
<summary>Commits</summary>
<ul>
<li>See full diff in <a
href="https://github.com/dotnet/extensions/commits">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=Microsoft.Extensions.TimeProvider.Testing&package-manager=nuget&previous-version=8.8.0&new-version=8.9.1)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop
Dependabot creating any more for this minor version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop
Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)


</details>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

dotnet/Directory.Packages.props

@@ -60,7 +60,7 @@
     <PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.1" />
     <PackageVersion Include="Microsoft.Extensions.Logging.Console" Version="8.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Options.DataAnnotations" Version="8.0.0" />
-    <PackageVersion Include="Microsoft.Extensions.TimeProvider.Testing" Version="8.8.0" />
+    <PackageVersion Include="Microsoft.Extensions.TimeProvider.Testing" Version="8.9.1" />
     <!-- Test -->
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.11.0" />
     <PackageVersion Include="Moq" Version="[4.18.4]" />