cgi: fix for https git server

cmake/lws_config_private.h.in

contrib/abi/libwebsockets.json

lib/core/context.c

lib/core/libwebsockets.c

lib/core/private.h

lib/event-libs/libuv/libuv.c

lib/roles/cgi/cgi-server.c

lib/roles/cgi/ops-cgi.c

lib/roles/cgi/private.h

lib/roles/http/server/server.c

minimal-examples/http-server/README.md