feat: show errors when user_oidc app is not available #2397

Job	Run time
builds / API tests (stable31, 8, 1, mysql, false)	14m 17s
builds / unit tests and linting (stable31, 8.1, false)	2m 35s
builds / API tests (stable31, 8, 2, mysql, false)	14m 9s
builds / unit tests and linting (stable31, 8.2, false)	2m 12s
builds / API tests (stable31, 8, 3, mysql, false)	14m 2s
builds / unit tests and linting (stable31, 8.3, false)	2m 22s
builds / API tests (master, 8, 3, mysql, false)	14m 11s
builds / unit tests and linting (master, 8.3, false)	2m 43s
builds / API tests (stable31, 8, 1, pgsql)	14m 38s
builds / unit tests and linting (stable27, 8)	2m 14s
builds / API tests (stable27, 8, 0, mysql)	14m 17s
builds / unit tests and linting (stable28, 8.1)	2m 40s
builds / API tests (stable28, 8, 1, mysql)	14m 17s
builds / unit tests and linting (stable29, 8.1)	3m 34s
builds / API tests (stable29, 8, 1, mysql)	14m 36s
builds / unit tests and linting (stable30, 8.2)	2m 28s
builds / API tests (stable30, 8, 2, mysql)	14m 45s
builds / notify-nightly-report	0s
	2h 30m 0s

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