### Bug Description As written this probe has an error: ``` File "/probes/common/check_fts_backlog", line 132 print(f'{bc['src']} to {bc['dst']} : {bc['submitted']} submitted jobs {activities_str}') ^ SyntaxError: f-string: unmatched '[' ``` ### Reproduction Steps _No response_ ### Expected Behavior _No response_ ### Possible Solution _No response_ ### Related Issues _No response_