perf(snapshots): Parallelize image hashing with rayon#3250

NicoHinderling wants to merge 2 commits intomastergetsentry/sentry-cli:masterfrom

03-26-perf_snapshots_parallelize_image_hashing_with_rayongetsentry/sentry-cli:03-26-perf_snapshots_parallelize_image_hashing_with_rayonCopy head branch name to clipboard