fix cache pip error (#29618)

paddle/scripts/paddle_build.bat

@@ -120,10 +120,9 @@ rem call paddle_winci\Scripts\activate.bat
 rem ------pre install python requirement----------
 where python
 where pip
-pip install --upgrade pip --user
 pip install wheel --user
-pip install -U -r %work_dir%\python\requirements.txt --user
-pip install -U -r %work_dir%\python\unittest_py\requirements.txt --user
+pip install -r %work_dir%\python\requirements.txt --user
+pip install -r %work_dir%\python\unittest_py\requirements.txt --user
 if %ERRORLEVEL% NEQ 0 (
     echo pip install requirements.txt failed!
     exit /b 7