mysql57, mysql80: build with protobuf 3.7
mysql57, mysql80: build with protobuf 3.7

They fail to build with protobuf 3.8:

In file included from /build/mysql-5.7.27/rapid/plugin/x/ngs/include/ngs/protocol/message.h:24,
                 from /build/mysql-5.7.27/rapid/plugin/x/ngs/include/ngs/protocol_encoder.h:23,
                 from /build/mysql-5.7.27/rapid/plugin/x/ngs/include/ngs/client_session.h:24,
                 from /build/mysql-5.7.27/rapid/plugin/x/src/xpl_session.h:25,
                 from /build/mysql-5.7.27/rapid/plugin/x/src/xpl_plugin.cc:23:
/build/mysql-5.7.27/rapid/plugin/x/ngs/include/ngs_common/protocol_protobuf.h:32:10: fatal error: google/protobuf/wire_format_lite_inl.h: No such file or directory
   32 | #include <google/protobuf/wire_format_lite_inl.h>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[2]: *** [rapid/plugin/x/CMakeFiles/mysqlx.dir/build.make:203: rapid/plugin/x/CMakeFiles/mysqlx.dir/src/xpl_plugin.cc.o] Error 1
make[2]: *** Waiting for unfinished jobs....

NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs