e218a62a7a
since C++20, std::string and std::string_view started providing `ends_with()` member function, the same applies to `seastar::sstring`, so there is no need to use `boost::ends_with()` anymore. in this change, we switch from `boost::ends_with()` to the member functions variant to - improve the readability - reduce the header dependency Signed-off-by: Kefu Chai <kefu.chai@scylladb.com> Closes scylladb/scylladb#22502