[baseline][ngtcp2] Disable all find_package to fix configure error

[Cheney-W]

Fixes CI baseline issue: multiple rules generate lib/ngtcp2.lib of below port and triplets.

ngtcp2:x86-windows
ngtcp2:x64-windows
ngtcp2:x64-uwp
ngtcp2:arm64-windows

When port cunit is found, ngtcp2 will genreate the static library which output name is same with the dynamic library, which caused this issue.
Disable all the find_package since this port has no dependency declaration yet.

• Changes comply with the maintainer guide
• SHA512s are updated for each updated download
• The "supports" clause reflects platforms that may be fixed by this new version
• Any fixed CI baseline entries are removed from that file.
• Any patches that are no longer applied are deleted from the port's directory.
• The version database is fixed by rerunning ./vcpkg x-add-version --all and committing the result.
• Only one version is added to each modified port's versions file.