[chore] Prepare release 0.125.0 (#933) #40

Job	Run time
Release k8s / prepare (linux, amd64)	5m 42s
Release k8s (Windows) / prepare (windows, amd64)	13m 22s
Release k8s / prepare (linux, ppc64le)	5m 43s
Release k8s / prepare (linux, arm64)	5m 44s
Release k8s / prepare (linux, s390x)	5m 23s
Release k8s (Windows) / prepare (windows, 386)	3m 41s
Release k8s / otelcol-k8s Release	1m 29s
Release k8s (Windows) / otelcol-k8s Release	3m 57s
	45m 1s

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