🐛 修正项目的代码警告 (#614)

* 🐛 调整ruff的pytest警告

* 🐛 调整导入关系警告

* 🐛 删除奇怪无用的赋值和取值逻辑

* ✅ 不同测试部分所用变量应加以区分

* 🐛 subs_io model添加默认值

* 🐛 修完所有的 ruff PT001 警告

* 🔧 按ruff建议修改ruff配置

warning: The top-level linter settings are deprecated in favour of their counterparts in the `lint` section. Please update the following options in `pyproject.toml`:
  - 'ignore' -> 'lint.ignore'
  - 'select' -> 'lint.select'

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

tests/post/test_generate.py

@@ -18,7 +18,7 @@ raw_post_list_2 = raw_post_list_1 + [
 ]
 
 
-@pytest.fixture()
+@pytest.fixture
 def mock_platform(app: App):
     from nonebot_bison.post import Post
     from nonebot_bison.types import Target, RawPost