`Failed to get draft release: get release tag: invalid status: 504 Gateway Timeout` with v0.17.0 when trying to upload several artifacts at once

[giordano]

See https://buildkite.com/julialang/yggdrasil/builds/15946#0194047c-d090-457a-a075-e4e61d668c9e/582-3590

Failed to get draft release: get release tag: invalid status: 504 Gateway Timeout GET https://api.github.com/repos/JuliaBinaryWrappers/Enzyme_jll.jl/releases?page=1&per_page=100: 504 We couldn't respond to your request in time. Sorry about that. Please try resubmitting your request and contact us if the problem persists. []

Here we're trying to upload about 500 artifacts at once (with -p 4 to avoid hitting secondary rate limits). We never had this issue before when using ghr 0.14.0.