nano_rpc: Error: logging should be initialized before creating a logger

[milahu]

continue #4680 (comment) for better visibility

Error: logging should be initialized before creating a logger

$ ./result/bin/nano_rpc --help
Assertion (global_initialized) failed
nano::logger::logger(std::string)
/build/source/nano/lib/logging.cpp:220
Error: logging should be initialized before creating a logger

 0# 0x00000000005B5357 in ./result/bin/nano_rpc
 1# 0x00000000005AF0F8 in ./result/bin/nano_rpc
 2# 0x000000000055F6D2 in ./result/bin/nano_rpc
 3# 0x000000000049990A in ./result/bin/nano_rpc
 4# __libc_start_main in /nix/store/apab5i73dqa09wx0q27b6fbhd1r18ihl-glibc-2.39-31/lib/libc.so.6
 5# 0x000000000049E475 in ./result/bin/nano_rpc

Aborted (core dumped)

low priority, because nano_rpc is just an rpc client

the problem is that nano::logger::logger is called before nano::logger::initialize

nano/nano_rpc/entry.cpp

namespace
{
nano::logger logger{ "rpc_daemon" };

the fix will be similar to #4680