Silence mypy import-untyped warning for requests

CI runs `uvx mypy src` in an isolated environment that does not honor the project's `ignore_missing_imports=true` setting in pyproject.toml. Add an inline type: ignore on the `requests` import rather than broadening CI or adding `types-requests` just for a single import.

Author: ericof

src/pytest_plone/fixtures/requests.py

@@ -8,7 +8,7 @@
 from urllib.parse import urlparse
 
 import pytest
-import requests
+import requests  # type: ignore[import-untyped]
 
 
 _ROLE_AUTH: dict[str, tuple[str, str] | None] = {