fix: broken or unwanted link pathTooLongException

[Ankush1oo8]

Summary

Describe your changes here.
In the remarks section, there's a link to Long Paths in .NET.

Now updated to

intended target of the link. I would be convenient if the link were updated.

Fixes #10404 (if available)

[dotnet-policy-service]

Tagging subscribers to this area: @dotnet/area-system-io

[learn-build-service-prod]

Learn Build status updates of commit e4be09a:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/System.IO/PathTooLongException.xml	✅Succeeded	View

For more details, please refer to the build report.

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[BillWagner]

Waiting for the runtime team to review as well. I had one comment on the URL format

[BillWagner]

The locale portion of the URL should be removed. That way, it redirects to the locale configured in the user's browser)

Suggested change

> This exception is not included in [.NET for Windows Store apps](https://learn.microsoft.com/en-us/dotnet/api/system.io.pathtoolongexception?view=net-8.0) or the [Portable Class Library](/dotnet/standard/cross-platform/cross-platform-development-with-the-portable-class-library), but it is thrown by some members that are. To catch the exception in that case, write a `catch` statement that handles an <xref:System.IO.IOException> instead.

> This exception is not included in [.NET for Windows Store apps](https://learn.microsoft.com/dotnet/api/system.io.pathtoolongexception?view=net-8.0) or the [Portable Class Library](/dotnet/standard/cross-platform/cross-platform-development-with-the-portable-class-library), but it is thrown by some members that are. To catch the exception in that case, write a `catch` statement that handles an <xref:System.IO.IOException> instead.