[vcpkg baseline][vowpal-wabbit] Fixing conflict with string-view-lite

[Cheney-W]

Fixes vcpkg pipeline issue vowpal-wabbit conflict with string-view-lite:

error: The following files are already installed in /mnt/vcpkg-ci/installed/x64-linux and are in conflict with vowpal-wabbit:x64-linux
Installed by string-view-lite:x64-linux    
include/nonstd/string_view.hpp

Adding -DVW_STRING_VIEW_LITE_SYS_DEP=ON to override using the submodule for string-view-lite dependency.

• 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.