Test

Make test image fetching do retries #257

Job	Run time
x86_64-ubuntu-20 cpu: x86-64 target: x86_64-unknown-linux-gnu runs-on:ubuntu-20.04	1m 48s
x86_64-ubuntu-22 cpu: x86-64 target: x86_64-unknown-linux-gnu runs-on:ubuntu-22.04	2m 58s
x86_64-windows cpu: x86-64 target: x86_64-pc-windows-msvc runs-on:windows-2022	4m 58s
x86_64-macos-13 cpu: haswell target: x86_64-apple-darwin runs-on:macos-13	2m 57s
ARM64-macos-14 cpu: apple-m1 target: aarch64-apple-darwin runs-on:macos-14	2m 8s
ARM64-ubuntu-24 (CROSS) cpu: generic target: aarch64-unknown-linux-gnu features: neon runs-on:ubuntu-24-arm-32gb	1m 43s
win32 (CROSS) target: i686-pc-windows-msvc runs-on:windows-2022	6m 31s
x64-linux-musl (CROSS) cpu: x86-64 target: x86_64-unknown-linux-musl features: mimalloc runs-on:ubuntu-24.04	3m 6s
arm64-linux-musl (CROSS) cpu: generic target: aarch64-unknown-linux-musl features: mimalloc runs-on:ubuntu-24-arm-32gb	5m 21s
	31m 30s

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