[tools] fix: replace console emoji in attachconfig.py

scons --attach prints a check mark / cross emoji as status prefix. On
Windows the standard output encoding follows the locale code page (936/GBK
on a Chinese system), which cannot encode U+2705/U+274C, so Python raises
UnicodeEncodeError and the command aborts:

    UnicodeEncodeError: 'gbk' codec can't encode character '\u2705'
      File "tools/attachconfig.py", line 18, in GenAttachConfigProject

All three commands go through the same function, so --attach=?,
--attach=<name> and --attach=default were all unusable on such systems.

Replace the emoji with plain ASCII markers and keep the existing ANSI colour
codes, which the other scripts under tools/ already use.

Refs #11906

Author: Yunlk

tools/attachconfig.py

@@ -15,7 +15,7 @@ def GenAttachConfigProject(program = None):
     if GetOption('attach') == '?':
         attachconfig=[]
         GetAttachConfig("get",attachconfig,0)
-        print("\033[32m✅ AttachConfig has: \033[0m")
+        print("\033[32m[OK] AttachConfig has: \033[0m")
         prefix=attachconfig[0]
         for line in attachconfig:
             temp_prefix=line.split(".", 1)
@@ -32,13 +32,13 @@ def GenAttachConfigProject(program = None):
         if os.path.exists(rtconfig__bacakup):
             shutil.copyfile(rtconfig__bacakup, rtconfig_file)
             os.remove(rtconfig__bacakup)
-        print("\033[32m✅ Default .config and rtconfig.h recovery success!\033[0m")
+        print("\033[32m[OK] Default .config and rtconfig.h recovery success!\033[0m")
     else:
         attachconfig=GetOption('attach')
         attachconfig_result=[]
         GetAttachConfig("search",attachconfig,attachconfig_result)
         if attachconfig_result==[]:
-            print("❌\033[31m Without this AttachConfig:"+attachconfig+"\033[0m")
+            print("[ERR]\033[31m Without this AttachConfig:"+attachconfig+"\033[0m")
             return
         if os.path.exists(config_bacakup)==False:
             shutil.copyfile(config_file, config_bacakup)
@@ -49,7 +49,7 @@ def GenAttachConfigProject(program = None):
                 destination.write(line + '\n')
         from env_utility import defconfig
         defconfig(Rtt_Root)
-        print("\033[32m✅ AttachConfig add success!\033[0m")
+        print("\033[32m[OK] AttachConfig add success!\033[0m")
 
 def GetAttachConfig(action,attachconfig,attachconfig_result):
     rtt_root = os.getcwd()