Update flux 2.3.0 #5466

Job	Run time
CI / setup	1s
CI / Build dashboard image	36s
CI / Build E2E runner image	59s
CI / sync_chart_from_bitnami	0s
CI / Build apprepository-controller image	2m 29s
CI / test_chart_render	21s
CI / Build asset-syncer image	1m 57s
CI / test_dashboard	3m 22s
CI / test_go	3m 4s
CI / Build kubeapps-apis image	2m 35s
CI / Build pinniped-proxy image	2m 20s
CI / test_oci_catalog	1m 13s
CI / test_pinniped_proxy	1m 29s
CI / Build oci-catalog image	2m 7s
CI / linters / golang-linter	2m 57s
CI / linters / license-headers-linter	50s
CI / linters / yaml-linter	8s
CI / push_dev_images	0s
CI / linters_result	1s
CI / local_e2e_tests	0s
CI / gke_setup	0s
CI / local_e2e_tests_result	1s
CI / push_images	0s
CI / GKE_STABLE_VERSION	0s
CI / GKE_REGULAR_VERSION	0s
CI / sync_chart_to_bitnami	0s
CI / release	0s
	26m 30s

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