Bazel 7 namespace collision

# 🐞 bug report

with rules_python 0.31.0 and bazel 7.1.2, there seems to be an issue with naming certain directories with certain names. Wondering if this is expected?

### Description

There is a namespace collision with certain directories

## 🔬 Minimal Reproduction

Build file
example/time/BUILD
```
load("@rules_python//python:defs.bzl", "py_test", "py_library")

py_library(
name = "time_py",
srcs = ["py_test.py"],
)

py_test(
main = "py_test.py",
srcs = [":time_py"],
)
```

`example/time/__init__.py`
```
import time
```

`example/time/py_test.py`
```
import time
```

bazel test //example/time:all --noincompatible_default_to_explicit_init_py will result in an import error

## 🔥 Exception or Error

```

ImportError while importing test module 

Hint: make sure your test modules/packages have valid Python names.

Traceback:

../pip_pytest/site-packages/_pytest/python.py:617: in _importtestmodule

    mod = import_path(self.path, mode=importmode, root=self.config.rootpath)

../pip_pytest/site-packages/_pytest/pathlib.py:564: in import_path

    importlib.import_module(module_name)

/home/ryang/.cache/bazel/_bazel_ryang/7071f3e24af240fa9a28f67dc16192b3/execroot/waabi-av/external/python3/lib/python310.zip/importlib/__init__.py:126: in import_module

    return _bootstrap._gcd_import(name[level:], package, level)

:1050: in _gcd_import

    ???

:1027: in _find_and_load

    ???

:1001: in _find_and_load_unlocked

    ???

E   ModuleNotFoundError: No module named 'time.py_test'; 'time' is not a package

```

## 🌍 Your Environment

**Operating System:**

ubuntu 20.04

**Output of `bazel version`:**

7.1.2
**Rules_python version:**

0.31.0

Start by reproducing the failure with example/time/BUILD, example/time/__init__.py, and example/time/py_test.py using the reported Bazel test command and versions. Trace how the Python test is packaged and imported, then verify the behavior around the time namespace collision and confirm that the minimal reproduction no longer raises the reported ModuleNotFoundError.

索引モデルが issue の本文から書いたものです。