internal/manifests/collector: switch internally to v1alpha2 #6490

Job	Run time
End-to-end tests e2e on K8s 1.23	8m 42s
End-to-end tests e2e-instrumentation on K8s 1.23	10m 22s
End-to-end tests e2e-upgrade on K8s 1.23	10m 32s
End-to-end tests e2e-autoscale on K8s 1.23	7m 17s
End-to-end tests e2e-pdb on K8s 1.23	7m 29s
End-to-end tests e2e-opampbridge on K8s 1.23	6m 58s
End-to-end tests e2e-prometheuscr on K8s 1.23	7m 32s
End-to-end tests e2e-multi-instrumentation on K8s 1.23	8m 37s
End-to-end tests e2e on K8s 1.29	8m 42s
End-to-end tests e2e-instrumentation on K8s 1.29	8m 38s
End-to-end tests e2e-upgrade on K8s 1.29	8m 0s
End-to-end tests e2e-autoscale on K8s 1.29	7m 0s
End-to-end tests e2e-pdb on K8s 1.29	6m 53s
End-to-end tests e2e-opampbridge on K8s 1.29	6m 56s
End-to-end tests e2e-prometheuscr on K8s 1.29	7m 43s
End-to-end tests e2e-multi-instrumentation on K8s 1.29	8m 36s
e2e-tests-check	1s
	2h 9m 58s

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