external/lua: update to Lua 5.4.7

Update the version of Lua included with Callisto to Lua 5.4.7.
Re-generate patches to apply cleanly on top of Lua 5.4.7 sources.

Fixes: https://todo.sr.ht/~jeremy/callisto/8

external/lua/patches/lua-5.4.7-iolib-istty.diff

@@ -21,7 +21,7 @@
  
  #include "lua.h"
  
-@@ -723,8 +730,25 @@
+@@ -732,6 +739,23 @@
    return luaL_fileresult(L, res == 0, NULL);
  }
  
@@ -41,13 +41,11 @@
 +  lua_pushboolean(L, isatty(fd));
 +  return 1;
 +}
- 
- 
 +
+ 
+ 
  static int io_flush (lua_State *L) {
-   return luaL_fileresult(L, fflush(getiofile(L, IO_OUTPUT)) == 0, NULL);
- }
-@@ -765,6 +789,7 @@
+@@ -778,6 +802,7 @@
    {"seek", f_seek},
    {"close", f_close},
    {"setvbuf", f_setvbuf},

external/lua/patches/lua-5.4.7-oslib-hostname.diff

@@ -21,14 +21,14 @@
  #include <time.h>
  
  #include "lua.h"
-@@ -401,7 +408,28 @@
+@@ -403,6 +410,27 @@
    return 0;
  }
  
 +#ifndef HOST_NAME_MAX
 +#define HOST_NAME_MAX 256 /* according to POSIX */
 +#endif
- 
++
 +/***
 + * Returns the system hostname.
 + *
@@ -46,11 +46,10 @@
 +    return 1;
 +}
 +
-+
+ 
  static const luaL_Reg syslib[] = {
    {"clock",     os_clock},
-   {"date",      os_date},
-@@ -409,6 +435,7 @@
+@@ -411,6 +439,7 @@
    {"execute",   os_execute},
    {"exit",      os_exit},
    {"getenv",    os_getenv},