Fix BYOB job results bytes typing issue

qiskit_ibm_provider/job/ibm_circuit_job.py

@@ -698,7 +698,7 @@ def _download_external_result(self, response: Any) -> Any:
             if "url" in result_url_json:
                 url = result_url_json["url"]
                 result_response = requests.get(url, timeout=10)
-                return result_response.content
+                return result_response.text
             return response
         except json.JSONDecodeError:
             return response

releasenotes/notes/byob-job-result-typing-c66729881f9311e2.yaml

@@ -0,0 +1,6 @@
+---
+fixes:
+  - |
+    Fixed an issue where canceled and failed jobs would return an invalid result that
+    resulted in a type error, preventing the actual error from being returned
+    to the user.