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>

README.md

@@ -32,11 +32,11 @@ Run these in different consoles:
 
 ## About Lua version
 
-Skynet now uses a modified version of lua 5.3.5 ( https://github.com/ejoy/lua/tree/skynet ) for multiple lua states.
+Skynet now uses a modified version of lua 5.4.1 ( https://github.com/ejoy/lua/tree/skynet54 ) for multiple lua states.
 
 Official Lua versions can also be used as long as the Makefile is edited.
 
-## How To Use (Sorry, currently only available in Chinese)
+## How To Use
 
 * Read Wiki for documents https://github.com/cloudwu/skynet/wiki
 * The FAQ in wiki https://github.com/cloudwu/skynet/wiki/FAQ