test(e2e): fingerprint workload image tags without git #2146

Job	Run time
Resolve PR metadata	8s
build-supervisor / Resolve build plan	5s
build-gateway / Resolve build plan	4s
build-gateway / Rust gateway (amd64) / gateway (amd64)	6m 56s
build-gateway / Rust gateway (arm64) / gateway (arm64)	7m 11s
build-supervisor / Rust sandbox (amd64) / sandbox (amd64)	3m 8s
build-supervisor / Rust sandbox (arm64) / sandbox (arm64)	3m 38s
build-supervisor / Build supervisor (arm64)	1m 23s
build-supervisor / Build supervisor (amd64)	1m 27s
build-supervisor / Merge supervisor manifest	1m 1s
build-gateway / Build gateway (arm64)	1m 31s
build-gateway / Build gateway (amd64)	1m 39s
gpu-e2e / E2E Docker GPU (linux-arm64)	8m 10s
gpu-e2e / E2E Docker GPU (wsl-amd64)	9m 10s
gpu-e2e / E2E Docker GPU (linux-amd64)	6m 6s
build-gateway / Merge gateway manifest	1m 24s
e2e / E2E (rust-docker)	7m 57s
e2e / E2E (rust-podman-rootless)	15m 57s
kubernetes-e2e / Kubernetes E2E (Rust smoke)	9m 42s
e2e / E2E (rust-podman)	15m 1s
e2e / E2E (python)	6m 52s
kubernetes-ha-e2e	-1s
Kubernetes HA E2E result	-1s
GPU E2E result	3s
Core E2E result	5s
	1h 48m 36s

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