[src/server/detail/pct_decode.hpp](https://github.com/cppalliance/http/blob/e92e356e47ad566a74c6c37861a8120a6b1c6426/src/server/detail/pct_decode.hpp#L24) and [src/server/detail/pct_decode.cpp](https://github.com/cppalliance/http/blob/e92e356e47ad566a74c6c37861a8120a6b1c6426/src/server/detail/pct_decode.cpp#L17) define a variant of [boost::urls::grammar::ci_is_equal](https://www.boost.org/doc/libs/master/doc/antora/url/reference/boost/urls/grammar/ci_is_equal-0b2.html) because of a bug we had in Boost.URL. This can be removed because the bug has been fixed in https://github.com/boostorg/url/commit/b5a940fbc1eccd1798f28b6441dd0b7fc80a63cb.
src/server/detail/pct_decode.hpp and
src/server/detail/pct_decode.cpp define a variant of boost::urls::grammar::ci_is_equal because of a bug we had in Boost.URL. This can be removed because the bug has been fixed in boostorg/url@b5a940f.