Update vc_env_helper.bat

Author: HolyWu

packaging/vc_env_helper.bat

@@ -1,6 +1,9 @@
 @echo on
 
-for /f "usebackq tokens=*" %%i in (`"%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" -property installationPath`) do (
+set VC_VERSION_LOWER=17
+set VC_VERSION_UPPER=18
+
+for /f "usebackq tokens=*" %%i in (`"%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" -legacy -products * -version [%VC_VERSION_LOWER%^,%VC_VERSION_UPPER%^) -property installationPath`) do (
     if exist "%%i" if exist "%%i\VC\Auxiliary\Build\vcvarsall.bat" (
         set "BAZEL_VC=%%i\VC"
         set "VS15INSTALLDIR=%%i"