[sfml] update to 3.0.0

[pascal754]

Library name

SFML

New version number

3.0.0

Other information that may be useful (release notes, etc...)

SFML 3.0.0 Release

According to the Release Notes:

SFML 3 is a new major version and as such breaking changes have been made.
To ease the pain of migration, we've written an extensive migration guide.

I have a couple of questions:

How about imgui-sfml?

Is it necessary to add major version number, for example, sfml3?

[WangWeiLin-MV]

Is it necessary to add major version number, for example, sfml3?

We do not recommend maintaining multiple versions of the same upstream.

How about imgui-sfml?

Upstream port should be installable simultaneously with downstream port. https://learn.microsoft.com/en-us/vcpkg/contributing/maintainer-guide#ports-in-the-current-baseline-must-be-installable-simultaneously