context deadline exceeded

I get this error randomly when using sigsum-submit, maybe like ~25% of the time. Is this rate-limiting hitting me? If so maybe the error message could be improve to give that as a hint.

https://gitlab.com/debdistutils/canary/trisquel/-/jobs/4177642502

+ time sigsum-submit --signing-key /builds/debdistutils/canary/trisquel.tmp/SIGSUM_PRIVATE_KEY --policy sigsum.policy
+ tee sigsum//sigsum-39b6bfde91b8a29cc5fe339099eefae8e903019e07512af00e33de4e920fe89a.txt
2023/04/25 19:01:05 [ERRO] Submitting to log "https://poc.sigsum.org/jellyfish" failed: context deadline exceeded
2023/04/25 19:01:05 [FATA] all logs failed, giving up
Command exited with non-zero status 1