refactor: update request timeout handling when fetching secrets (#1272)

Author: hieptl

openhands-sdk/openhands/sdk/conversation/secret_source.py

@@ -45,7 +45,7 @@ class LookupSecret(SecretSource):
     headers: dict[str, str] = Field(default_factory=dict)
 
     def get_value(self):
-        response = httpx.get(self.url, headers=self.headers)
+        response = httpx.get(self.url, headers=self.headers, timeout=30.0)
         response.raise_for_status()
         return response.text