Fix 7z

Author: FeodorFitsner

.appveyor.yml

@@ -52,8 +52,7 @@ for:
       - curl -OL https://www.python.org/ftp/python/%PYTHON_VERSION%/python-%PYTHON_VERSION%-amd64.exe
       - start /wait python-%PYTHON_VERSION%-amd64.exe /quiet
       - dir C:\python312-dist
-      - cd C:\python312-dist
-      - 7z a python-windows-for-dart-%PYTHON_VERSION%.zip *
+      - 7z a python-windows-for-dart-%PYTHON_VERSION%.zip C:\python312-dist\*
 
     test: off