refactor(sns): Move upgrade-steps-related functions to their own file… #590

Job	Run time
Bazel System Test Hotfix	24m 36s
Bazel System Test Nightly	37m 2s
Dependency Scan for Release	2m 59s
Bazel System Test Staging	16m 46s
Setting up guest os qualification pipeline	6s
CI Main / Bazel Build All Config Check	0s
CI Main / Bazel Build Fuzzers	2m 49s
CI Main / Bazel Build Fuzzers AFL	5m 4s
CI Main / Bazel Test All	20m 48s
CI Main / Bazel Test macOS Intel	21m 14s
CI Main / Build IC	16m 44s
CI Main / Cargo Clippy Linux	18s
CI Main / Cargo Build Release Linux	20s
CI Main / Python CI Tests	1m 36s
Qualifying 6e2c0d9fbea99f799a987a365ff6ad2b883067c9 -> 959a5ebd1fa677f9d44ac8939b02811810df0b39	1h 18m 46s
Qualifying a3478d571670053ebd09b9771bec489ef69425fa -> 959a5ebd1fa677f9d44ac8939b02811810df0b39	1h 20m 17s
CI Main / Build Determinism (//publish/binaries:upload, release, build-ic/release, false)	35s
CI Main / Build Determinism (//publish/canisters:upload, canisters, build-ic/canisters, false)	46s
CI Main / Build Determinism (//ic-os/guestos/envs/prod:upload_disk-img, guest-os/update-img, build-ic/icos/...	32s
CI Main / Build Determinism (//ic-os/hostos/envs/prod:upload_update-img, host-os/update-img, build-ic/icos/...	30s
CI Main / Build Determinism (//ic-os/setupos/envs/prod:upload_disk-img, setup-os/disk-img, build-ic/icos/se...	31s
	5h 12m 19s

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