Remove use of private _token_provider from pyrit (Azure#40385)

* remove use of private _token_provider from pyrit

* pin pyrit

Author: slister1001

sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/red_team/_red_team.py

@@ -1362,8 +1362,6 @@ async def _process_attack(
             converter = self._get_converter_for_strategy(strategy)
             try:
                 self.logger.debug(f"Calling orchestrator for {strategy_name} strategy")
-                if isinstance(self.chat_target,OpenAIChatTarget) and not self.chat_target._headers.get("Api-Key", None):
-                    self.chat_target._headers["Authorization"] = f"Bearer {self.chat_target._token_provider()}"
                 orchestrator = await call_orchestrator(self.chat_target, all_prompts, converter, strategy_name, risk_category.value, timeout)
             except PyritException as e:
                 log_error(self.logger, f"Error calling orchestrator for {strategy_name} strategy", e)

sdk/evaluation/azure-ai-evaluation/setup.py

@@ -83,7 +83,7 @@
     ],
     extras_require={
         "redteam": [
-            "pyrit>=0.8.1"
+            "pyrit==0.8.1"
         ]
     },
     project_urls={