common : fix parallel shard download interleaving output#6831

TevinWang wants to merge 9 commits intoggml-org:masterggml-org/llama.cpp:masterfrom

jhs-panda:jhs-panda/set-curlopt-noprogressjhs-panda/llama.cpp:jhs-panda/set-curlopt-noprogressCopy head branch name to clipboard