fix: allineare return type da requests.Response a ResponseLike

_raise_on_bad_status restituisce result.response che ora è
ResponseLike | None (lab-connectors #58). requests non è più
importato.

Author: Gabrymi93

src/agent_context_builder/github.py

@@ -5,8 +5,8 @@
 from dataclasses import dataclass
 from typing import Any, Optional
 
-import requests
 from lab_connectors.http import HttpClient, HttpResult
+from lab_connectors.http.types import ResponseLike
 
 
 @dataclass
@@ -112,7 +112,7 @@ def get_issues(self, repos: list[str], state: str = "open") -> list[Issue]:
                 self.fetch_errors[f"{repo}:issues"] = str(e)
         return issues
 
-    def _raise_on_bad_status(self, result: HttpResult, url_desc: str) -> requests.Response:
+    def _raise_on_bad_status(self, result: HttpResult, url_desc: str) -> ResponseLike:
         """Raise RuntimeError if result is error or response status >= 400.
         Returns the response if OK."""
         if not result.is_ok or result.response is None: