fix(plugin_server) skip preloading headers in stream subsystem (#8414)
fix(plugin_server) skip preloading headers in stream subsystem (#8414)

Skip preloading headers in stream subsystem.
Note this commit doesn't try to guard from user actively call kong.request.get_header{,s},
which will result into an error, but rather let the log phase proceed in stream subsystem.
Kong/kong,Kong/kong,Kong/kong