feat: avoid warnings with Psalm 6 #1312

Job	Run time
Tests without optional packages (7.2, lowest, 4.4.*)	42s
Tests (7.2, 4.4.*, highest)	1m 15s
Tests without optional packages (7.4, highest)	1m 0s
Tests (7.2, 5.*, highest)	45s
Tests without optional packages (8.0, lowest, 4.4.*)	1m 30s
Tests (7.3, 4.4.*, highest)	1m 34s
Tests without optional packages (8.3, highest)	23s
Tests (7.3, 5.*, highest)	33s
Tests (7.4, 4.4.*, highest)	45s
Tests (7.4, 5.*, highest)	40s
Tests (8.0, 4.4.*, highest)	48s
Tests (8.0, 5.*, highest)	46s
Tests (8.0, 6.*, highest)	36s
Tests (8.1, 4.4.*, highest)	37s
Tests (8.1, 5.*, highest)	30s
Tests (8.1, 6.*, highest)	41s
Tests (8.2, 4.4.*, highest)	46s
Tests (8.2, 5.*, highest)	42s
Tests (8.2, 6.*, highest)	45s
Tests (8.2, 7.*, highest)	33s
Tests (8.3, 4.4.*, highest)	31s
Tests (8.3, 5.*, highest)	25s
Tests (8.3, 6.*, highest)	33s
Tests (8.3, 7.*, highest)	24s
Tests (7.2, 4.4.*, lowest)	46s
Tests (7.2, 5.*, lowest)	46s
Tests (8.0, 6.*, lowest)	49s
Tests (8.2, 7.*, lowest)	50s
	20m 55s

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