python gazelle: ignore "binaries" when generating py_librarys

# 🚀 feature request

### Relevant Rules

- rules_python

### Description

A clear and concise description of the problem or missing capability...

Add a config for python gazelle module to ignore "binary" files from the`srcs` of the `py_library` generated code.

By "binary" file I mean the logic that gazelle uses to define what src is used by a generated `py_binary`

### Describe the solution you'd like

If you have a solution in mind, please describe it.

### Describe alternatives you've considered

Have you considered any alternative solutions or workarounds?

首先定位 Python Gazelle 模块，以及确定生成的 py_binary 和 py_library 目标源文件的逻辑。定义所请求配置对二进制文件的行为，并验证生成的 py_library srcs 会省略这些文件，同时 py_binary 的源文件检测保持不变。

由索引模型根据 Issue 内容生成。