feat: make cmd and environment attributes stampable #838

Job	Run time
test-auth	2m 24s
matrix-prep-bazelversion	4s
test (ubuntu-latest, 6.2.0, ., true)	2m 56s
test (ubuntu-latest, 6.2.0, ., false)	1m 29s
test (ubuntu-latest, 6.2.0, e2e/custom_registry, false)	2m 12s
test (ubuntu-latest, 6.2.0, e2e/wasm, false)	2m 41s
test (ubuntu-latest, 6.2.0, e2e/smoke, true)	1m 52s
test (ubuntu-latest, 6.2.0, e2e/smoke, false)	2m 2s
test (ubuntu-latest, 6.2.0, e2e/crane_as_registry, true)	2m 4s
test (ubuntu-latest, 6.2.0, e2e/crane_as_registry, false)	2m 44s
test (ubuntu-latest, 5.3.2, ., false)	3m 41s
test (ubuntu-latest, 5.3.2, e2e/custom_registry, false)	3m 15s
test (ubuntu-latest, 5.3.2, e2e/wasm, false)	2m 50s
test (ubuntu-latest, 5.3.2, e2e/smoke, false)	2m 39s
test (ubuntu-latest, 5.3.2, e2e/crane_as_registry, false)	2m 25s
	35m 18s

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