Fix TimeZones Test failure

[tarekgh]

Fixes#60119

Recently, Helix started to use Windows 7 N image in the CI run. This image includes a lot of installed UI languages. The time zone display names depends on the installed localized resources on the path %SystemDirectory%\[Language]\tzres.dll.mui. For example, if Japanese UI language is installed, Windows will install the file %SystemDirectory%\ja-JP\tzres.dll.mui. We found on the Windows 7 image, Windows not necessary installing this file for specific language. zh-HK is the one we encountered which caused the test failure.

The fix here is to make the test tolerate this case. The test still working properly and validating all installed UI languages time zone display names.

[ghost]

Tagging subscribers to this area: @tarekgh, @safern
See info in area-owners.md if you want to be subscribed.

Issue Details

---

Fixes #60119

Recently, Helix started to use Windows 7 N image in the CI run. This image includes a lot of installed UI languages. The time zone display names depends on the installed localized resources on the path %SystemDirectory%\[Language]\tzres.dll.mui. For example, if Japanese UI language is installed, Windows will install the file %SystemDirectory%\ja-JP\tzres.dll.mui. We found on the Windows 7 image, Windows not necessary installing this file for specific language. zh-HK is the one we encountered which caused the test failure.

The fix here is to make the test tolerate this case. The test still working properly and validating all installed UI languages time zone display names.

Author:	tarekgh
Assignees:	-
Labels:	area-System.Globalization
Milestone:	-

[ghost]

Tagging subscribers to this area: @dotnet/area-system-runtime
See info in area-owners.md if you want to be subscribed.

Issue Details

---

Fixes #60119

Recently, Helix started to use Windows 7 N image in the CI run. This image includes a lot of installed UI languages. The time zone display names depends on the installed localized resources on the path %SystemDirectory%\[Language]\tzres.dll.mui. For example, if Japanese UI language is installed, Windows will install the file %SystemDirectory%\ja-JP\tzres.dll.mui. We found on the Windows 7 image, Windows not necessary installing this file for specific language. zh-HK is the one we encountered which caused the test failure.

The fix here is to make the test tolerate this case. The test still working properly and validating all installed UI languages time zone display names.

Author:	tarekgh
Assignees:	-
Labels:	area-System.Runtime
Milestone:	-

[tarekgh]

CC @MattGal@krwq@safern

[safern]

LGTM

[tarekgh]

runtime (Libraries Test Run release coreclr windows x86 Debug) failure is unrelated and tracked by the issue #60147

[tarekgh]

/backport to release/6.0

[github-actions]

Started backporting to release/6.0: https://github.com/dotnet/runtime/actions/runs/1318301449