bde vendors copies of ryu and pcre2 that make it link incompatible with upstream versions.

[BillyONeal]

This is likely to force us to remove bde from vcpkg's index, for example, because bde doesn't appear to be link compatible with real ryu or pcre2.

[osubboo]

We will address the issues with ryu and pcre2 in the vcpg builds.