Bump prost from 0.12.4 to 0.13.1 in /cmd/oci-catalog #4830

Job	Run time
CI / setup	5s
CI / Build dashboard image	5m 27s
CI / Build E2E runner image	1m 3s
CI / Build apprepository-controller image	2m 2s
CI / sync_chart_from_bitnami	0s
CI / Build asset-syncer image	2m 1s
CI / test_chart_render	17s
CI / Build kubeapps-apis image	4m 48s
CI / test_dashboard	2m 49s
CI / Build pinniped-proxy image	2m 15s
CI / test_go	2m 52s
CI / Build oci-catalog image	1m 39s
CI / test_oci_catalog	1m 6s
CI / test_pinniped_proxy	1m 27s
CI / linters / golang-linter	3m 8s
CI / linters / license-headers-linter	43s
CI / linters / yaml-linter	7s
CI / linters_result	1s
CI / local_e2e_tests	0s
CI / push_dev_images	0s
CI / gke_setup	0s
CI / local_e2e_tests_result	1s
CI / push_images	0s
CI / GKE_REGULAR_VERSION	0s
CI / GKE_STABLE_VERSION	0s
CI / sync_chart_to_bitnami	0s
CI / release	0s
	31m 51s

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