Revert "use DOCKER_TOKEN_COLLECTOR_RELEASES rather than DOCKER_PASSWO… #57

Job	Run time
Release Core (Windows) / prepare (windows, 386)	7m 57s
Release Core (Windows) / prepare (windows, amd64)	11m 5s
Release Core / prepare (linux, arm64)	5m 14s
Release Core / prepare (linux, 386)	4m 45s
Release Core / prepare (linux, arm)	4m 26s
Release Core / prepare (linux, amd64)	5m 40s
Release Core / prepare (darwin, arm64)	4m 34s
Release Core / prepare (darwin, amd64)	4m 35s
Release Core / prepare (linux, ppc64le)	5m 26s
Release Core / prepare (linux, s390x)	4m 56s
Release Core / otelcol Release	3m 48s
Release Core (Windows) / otelcol Release	3m 3s
	1h 5m 29s

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