fix(ofrep): use data.get for errorCode fallback to GENERAL

Signed-off-by: Thomas Poignant <thomas.poignant@gofeatureflag.org>

Author: thomaspoignant

providers/openfeature-provider-ofrep/src/openfeature/contrib/provider/ofrep/__init__.py

@@ -185,7 +185,7 @@ def _handle_error(self, exception: requests.RequestException) -> NoReturn:
         except JSONDecodeError:
             raise ParseError(str(exception)) from exception
 
-        error_code = ErrorCode(data["errorCode"])
+        error_code = ErrorCode(data.get("errorCode", "GENERAL"))
         error_details = data["errorDetails"]
 
         if error_code == ErrorCode.PARSE_ERROR: