Updated
[Microsoft.AspNetCore.Mvc.Testing](https://github.com/dotnet/aspnetcore)
from 9.0.11 to 9.0.12.

<details>
<summary>Release notes</summary>

_Sourced from [Microsoft.AspNetCore.Mvc.Testing's
releases](https://github.com/dotnet/aspnetcore/releases)._

## 9.0.12

[Release](https://github.com/dotnet/core/releases/tag/v9.0.12)

## What's Changed
* Update branding to 9.0.12 by @​vseanreesermsft in
dotnet/aspnetcore#64248
* Update `Microsoft.Build` versions to 17.8.43 by @​MackinnonBuck in
dotnet/aspnetcore#64277
* [release/9.0] (deps): Bump src/submodules/googletest from `9706f75` to
`6ec14df` by @​dependabot[bot] in
dotnet/aspnetcore#64230
* [release/9.0] Update dependencies from dotnet/extensions by
@​dotnet-maestro[bot] in dotnet/aspnetcore#64111
* [release/9.0] Update dependencies from dotnet/arcade by
@​dotnet-maestro[bot] in dotnet/aspnetcore#64065
* [release/9.0] Upgrade to MacOS 15 for CI by @​wtgodbe in
dotnet/aspnetcore#64310
* Merging internal commits for release/9.0 by @​vseanreesermsft in
dotnet/aspnetcore#64312
* [release/9.0] Don't use netcoreapp2.1 in dotnet-get-document by
@​wtgodbe in dotnet/aspnetcore#64351
* [release/9.0] AppContext for HttpSys CBT hardening by @​BrennanConroy
in dotnet/aspnetcore#64297
* [release/9.0] Update dependencies from dotnet/arcade by
@​dotnet-maestro[bot] in dotnet/aspnetcore#64350
* [release/9.0] Update dependencies from dotnet/extensions by
@​dotnet-maestro[bot] in dotnet/aspnetcore#64388
* [release/9.0] Delete signalr-daily-tests.yml by @​github-actions[bot]
in dotnet/aspnetcore#64589
* [release/9.0] (deps): Bump src/submodules/googletest from `6ec14df` to
`1b96fa1` by @​dependabot[bot] in
dotnet/aspnetcore#64580
* [release/9.0] Update dependencies from dotnet/extensions by
@​dotnet-maestro[bot] in dotnet/aspnetcore#64503


**Full Changelog**:
dotnet/aspnetcore@v9.0.11...v9.0.12

Commits viewable in [compare
view](dotnet/aspnetcore@v9.0.11...v9.0.12).
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