add healthcheck to containers #1597

Job	Run time
Build Matomo NGINX / build	14s
Build Matomo PHP / build	11s
Build Keycloak / build	23s
Build Databox Indexer / build	1m 17s
Build nginx-cache-purge / build	15s
Build nginx-client-base / build	16s
Build nginx-fpm-base / build	25s
Build nodejs-base / build	41s
Build php-fpm-base / build	32s
Build Report API / build	21s
Build Expose API / build	1m 36s
Build Notify API / build	1m 8s
Build Databox API / build	3m 6s
Build Configurator / build	41s
Build Uploader API / build	1m 7s
Build Dashboard / build	1m 52s
Build Expose Client / build	2m 5s
Build Databox Client / build	2m 52s
Build Uploader Client / build	2m 9s
Setup stack	13m 19s
	34m 30s

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