feat: support Oauth2 for oci_pull (#626) #1518

Job	Run time
matrix-prep-os	1s
matrix-prep-bazelversion	4s
test (ubuntu-latest, 6.4.0, ., true)	2m 50s
test (ubuntu-latest, 6.4.0, ., false)	2m 46s
test (ubuntu-latest, 6.4.0, e2e/custom_registry, false)	3m 0s
test (ubuntu-latest, 6.4.0, e2e/wasm, false)	23s
test (ubuntu-latest, 6.4.0, e2e/smoke, true)	21s
test (ubuntu-latest, 6.4.0, e2e/smoke, false)	19s
test (ubuntu-latest, 6.4.0, e2e/crane_as_registry, true)	14s
test (ubuntu-latest, 6.4.0, e2e/crane_as_registry, false)	16s
test (ubuntu-latest, 6.4.0, e2e/pull, true)	2m 7s
test (ubuntu-latest, 6.4.0, ., true)	2m 55s
test (ubuntu-latest, 6.4.0, ., false)	5m 45s
test (ubuntu-latest, 6.4.0, e2e/custom_registry, false)	48s
test (ubuntu-latest, 6.4.0, e2e/wasm, false)	2m 44s
test (ubuntu-latest, 6.4.0, e2e/smoke, true)	17s
test (ubuntu-latest, 6.4.0, e2e/smoke, false)	2m 29s
test (ubuntu-latest, 6.4.0, e2e/crane_as_registry, true)	2m 24s
test (ubuntu-latest, 6.4.0, e2e/crane_as_registry, false)	10s
test (ubuntu-latest, 6.4.0, e2e/pull, true)	3m 59s
	33m 52s

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