[NETSDKE2E]Libicu package dependency issue on Ubuntu24.04

[NicoleWang001]

Describe the bug

Due to Ubuntu having libicu74, installing .NET May update builds on Ubuntu 24.04 will return dependency problems as libicu is not installed.

To Reproduce

1. Try to install .NET 6.0/7.0/8.0 May update SDK via .deb on Ubuntu 24.04

Exceptions (if any)

It will return dependency problems as libicu is not installed.
Taking .NET 6.0.422 for example

[baronfel]

@jkoritzinsky since I saw your handle on the Runtime installer dependency list - do you know if we support .NET 6 on ubuntu 24.04? If so, do we need to extend this ICU version list to include 74?

cc @richlander as well

[nagilson]

For the record, the vendor states that this impacts 7 and 8 as well, not just 6.

[baronfel]

Yeah, that makes sense - the file is the same on 7 and 8 release branches as well.

[jkoritzinsky]

According to dotnet/core we do. I'll update the packages.

.NET 7 is out of support, so I'll only be updating .NET 6 and 8 (as we don't have a mechanism to ship .NET 7 any more).

[richlander]

Are the packages coming from packages.microsoft.com (PMC)? We don't support any PMC packages on Ubuntu 24.04.

More context:

• .NET Packages for Ubuntu 24.04 core#9258
• https://devblogs.microsoft.com/dotnet/whats-new-for-dotnet-in-ubuntu-2404/