Improve WordPress's observability and increase health check timeout #804

Job	Run time
Integration Test / Get runner image / Get runner image	3s
Integration Test / Build and push charm	2m 41s
Integration Test / Build rock / Get rocks	4s
Integration Test / Build image / Get images	3s
Integration Test / Build image / Build image	0s
Integration Test / Build rock / Build rock (wordpress_rock)	9m 38s
Integration Test / Get rocks or Docker images	1s
Integration Test / Integration tests / Integration tests (test_addon)	16m 24s
Integration Test / Integration tests / Integration tests (test_core)	10m 57s
Integration Test / Integration tests / Integration tests (test_external)	11m 20s
Integration Test / Integration tests / Integration tests (test_ingress)	20m 36s
Integration Test / Integration tests / Integration tests (test_cos_grafana)	13m 12s
Integration Test / Integration tests / Integration tests (test_cos_loki)	12m 33s
Integration Test / Integration tests / Integration tests (test_cos_prometheus)	11m 21s
Integration Test / Required Integration Test Status Checks	1s
	1h 48m 54s

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