Fix: eneabledelayedexpansion for error code

scripts/Update-Style-Bert-VITS2.bat

@@ -1,9 +1,11 @@
 chcp 65001 > NUL
 @echo off
 
+@REM エラーコードを遅延評価するために設定
+setlocal enabledelayedexpansion
+
 pushd %~dp0
 
-set PATH=%~dp0lib\MinGit\cmd;%PATH%
 
 pushd Style-Bert-VITS2
 
@@ -11,7 +13,24 @@ echo --------------------------------------------------
 echo Checking Git Installation...
 echo --------------------------------------------------
 git --version
-if %errorlevel% neq 0 ( pause & popd & exit /b %errorlevel% )
+if !errorlevel! neq 0 (
+	echo --------------------------------------------------
+	echo Global Git is not installed, so use PortableGit.
+	echo Setting up PATH...
+	echo --------------------------------------------------
+	echo Executing: set "PATH=%~dp0lib\PortableGit\bin;%PATH%"
+	pause
+	set "PATH=%~dp0lib\PortableGit\bin;%PATH%"
+	if !errorlevel! neq 0 ( pause & popd & exit /b !errorlevel! )
+
+	echo --------------------------------------------------
+	echo Checking Git Installation...
+	echo --------------------------------------------------
+	echo Executing: git --version
+	pause
+	git --version
+	if !errorlevel! neq 0 ( pause & popd & exit /b !errorlevel! )
+)
 
 pause
 
@@ -19,7 +38,7 @@ echo --------------------------------------------------
 echo Git pull...
 echo --------------------------------------------------
 git pull
-if %errorlevel% neq 0 ( pause & popd & exit /b %errorlevel% )
+if !errorlevel! neq 0 ( pause & popd & exit /b !errorlevel! )
 
 @REM 仮想環境のpip requirements.txtを更新
 
@@ -29,10 +48,10 @@ echo --------------------------------------------------
 
 @REM 仮想環境を有効化
 call .\venv\Scripts\activate.bat
-if %errorlevel% neq 0 ( pause & popd & exit /b %errorlevel% )
+if !errorlevel! neq 0 ( pause & popd & exit /b !errorlevel! )
 
 pip install -U -r requirements.txt
-if %errorlevel% neq 0 ( pause & popd & exit /b %errorlevel% )
+if !errorlevel! neq 0 ( pause & popd & exit /b !errorlevel! )
 
 echo ----------------------------------------
 echo Update completed.