[test] runtime env pip version pinned to 24.1.2 for python 3.12 suppo…

…rt (ray-project#46574)

The old version (20.2.3) will fail
`test_runtime_env_conda_and_pip_4.py::test_runtime_env_with_pip_config`
showing error like:

```
No module named 'pip._vendor.six.moves'
```

After upgrade, it will pass.

Signed-off-by: hongchaodeng <[email protected]>

python/ray/tests/test_runtime_env_conda_and_pip_4.py

@@ -157,15 +157,15 @@ def test_run_in_virtualenv(cloned_virtualenv):
 def test_runtime_env_with_pip_config(start_cluster):
  @ray.remote(
  runtime_env={
- "pip": {"packages": ["pip-install-test==0.5"], "pip_version": "==20.2.3"}
+ "pip": {"packages": ["pip-install-test==0.5"], "pip_version": "==24.1.2"}
  }
  )
  def f():
  import pip
 
  return pip.__version__
 
- assert ray.get(f.remote()) == "20.2.3"
+ assert ray.get(f.remote()) == "24.1.2"
 
 
 if __name__ == "__main__":

python/ray/tests/test_runtime_env_conda_and_pip_5.py

@@ -8,10 +8,10 @@
 def test_runtime_env_with_pip_config(start_cluster):
 
  pip_versions = [
- ("==20.2.3", lambda pip_version: parse(pip_version) == parse("20.2.3")),
+ ("==24.1.2", lambda pip_version: parse(pip_version) == parse("24.1.2")),
  (
- "<20.3, >19",
- lambda pip_version: parse("19") < parse(pip_version) < parse("20.3"),
+ "<24.2, >19",
+ lambda pip_version: parse("19") < parse(pip_version) < parse("24.2"),
  ),
  ]