fix expired link in python onnxruntime readme (#1013)

Meng Wei

2023-10-17 8a16e1c13e91c9a7c43ba546fd71b85765d9469f

 .github/workflows/UnitTest.yml

@@ -6,9 +6,7 @@
        - main
  push:
    branches:
      - dev_wjm
      - dev_jy
      - dev_wjm_infer

jobs:
  build: