chore: add docker.elastic.co registry support (#471) #1104

Job	Run time
matrix-prep-os	1s
matrix-prep-bazelversion	5s
test (ubuntu-latest, 6.2.0, ., true)	2m 11s
test (ubuntu-latest, 6.2.0, ., false)	2m 23s
test (ubuntu-latest, 6.2.0, e2e/custom_registry, false)	1m 0s
test (ubuntu-latest, 6.2.0, e2e/wasm, false)	51s
test (ubuntu-latest, 6.2.0, e2e/smoke, true)	19s
test (ubuntu-latest, 6.2.0, e2e/smoke, false)	17s
test (ubuntu-latest, 6.2.0, e2e/crane_as_registry, true)	12s
test (ubuntu-latest, 6.2.0, e2e/crane_as_registry, false)	16s
test (ubuntu-latest, 6.2.0, e2e/pull, true)	1m 52s
test (ubuntu-latest, 5.3.2, ., false)	4m 22s
test (ubuntu-latest, 5.3.2, e2e/custom_registry, false)	49s
test (ubuntu-latest, 5.3.2, e2e/wasm, false)	33s
test (ubuntu-latest, 5.3.2, e2e/smoke, false)	18s
test (ubuntu-latest, 5.3.2, e2e/crane_as_registry, false)	18s
test (macos-latest, 6.2.0, ., true)	6m 25s
test (macos-latest, 6.2.0, ., false)	6m 19s
test (macos-latest, 6.2.0, e2e/smoke, true)	53s
test (macos-latest, 6.2.0, e2e/smoke, false)	51s
	30m 15s

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