Suppress postgres warning in specs #848

Job	Run time
Ruby specs (3.1, rails_7.1, 16, stable)	1m 19s
Ruby specs (3.4, rails_7.1, 16, stable)	1m 17s
Ruby specs (3.1, rails_7.0, 16, stable)	1m 14s
Ruby specs (3.2, rails_7.0, 16, stable)	1m 20s
Ruby specs (3.3, rails_7.0, 16, stable)	1m 21s
Ruby specs (3.0, rails_7.1, 16, stable)	1m 21s
Ruby specs (3.2, rails_7.1, 16, stable)	1m 19s
Ruby specs (3.1, rails_7.2, 16, stable)	1m 21s
Ruby specs (3.0, rails_7.0, 16, stable)	1m 20s
Ruby specs (3.3, rails_7.2, 16, stable)	1m 34s
Ruby specs (3.2, rails_8.0, 16, stable)	1m 24s
Ruby specs (3.3, rails_7.1, 16, stable)	1m 22s
Ruby specs (3.3, rails_8.0, 16, stable)	1m 22s
Ruby specs (3.4, rails_8.0, 16, stable)	1m 16s
Ruby specs (3.2, rails_7.2, 16, stable)	1m 18s
Ruby specs (3.4, rails_7.2, 16, stable)	1m 17s
Ruby specs (3.4, rails_edge, 16, experimental)	1m 20s
Ruby specs (3.3, rails_edge, 16, experimental)	1m 26s
Ruby specs (3.2, rails_edge, 16, experimental)	1m 29s
Ruby specs (3.0, rails_7.0, 12, stable)	1m 39s
Ruby specs (head, rails_7.2, 16, experimental)	1m 12s
Ruby specs (head, rails_8.0, 16, experimental)	1m 17s
Ruby specs (head, rails_7.1, 16, experimental)	1m 15s
Ruby specs (head, rails_edge, 16, experimental)	1m 21s
	32m 24s

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