Update to lua 5.4 (#1174)

* update to lua 5.4.0-rc1

* remove LUA_ERRGCMM

* use age bits for shared

* remove unused lbitlib.c

* use luaV_fastget

* fix #1174

* suspend函数tailcall优化

* 防止没有session导致未调用suspend

* luaH_setint check shared (#1184)

* set LUA_GCGEN by default

* fix #1174 (#1186)

checkshared in sweeplist

* update to lua 5.4 rc2

* update to lua 5.4 rc4

* move skynet.profile into snlua

* Use lua_sethook to interrupt tight loops

* remove lua_checksig

* critical condition for signals

* update to lua 5.4 released

* lua 5.4 bugfix

* update lua bugfix

* fix lua_sharestring (#1224)

* update lua

* update lua 5.4

* update README

* add skynet.select

* add test

* test error & discard

* yield session

* request error has no error message

* add timeout to skynet.select

* bugfix

* for lua 5.4

* new version

* bugfix

* bugfix

* use if instead of while

* make local

* yield in select for

* update lua 5.4.1

* change lua version (#1245)

Co-authored-by: xiaojin <xiaojin@onemt.com.cn>

* update lua version number

Co-authored-by: hong <hongling0@gmail.com>
Co-authored-by: hong <hongling-0@qq.com>
Co-authored-by: 风---自由 <996442717qqcom@gmail.com>
Co-authored-by: xiaojin <xiaojin@onemt.com.cn>

examples/client.lua

@@ -1,8 +1,8 @@
 package.cpath = "luaclib/?.so"
 package.path = "lualib/?.lua;examples/?.lua"
 
-if _VERSION ~= "Lua 5.3" then
-	error "Use lua 5.3"
+if _VERSION ~= "Lua 5.4" then
+	error "Use lua 5.4"
 end
 
 local socket = require "client.socket"