Fix Collection return type in Query class template #1524

Job	Run time
code-style-and-static-analysis	2m 29s
Test Suite (7.4, sqlite, 4-min)	58s
Test Suite (7.4, sqlite, 4-max)	54s
Test Suite (7.4, sqlite, 5-min)	59s
Test Suite (7.4, sqlite, 5-max)	58s
Test Suite (7.4, mysql, 4-min)	1m 23s
Test Suite (7.4, mysql, 4-max)	1m 16s
Test Suite (7.4, mysql, 5-min)	1m 17s
Test Suite (7.4, mysql, 5-max)	1m 11s
Test Suite (7.4, pgsql, 4-min)	1m 11s
Test Suite (7.4, pgsql, 4-max)	1m 11s
Test Suite (7.4, pgsql, 5-min)	1m 23s
Test Suite (7.4, pgsql, 5-max)	1m 23s
Test Suite (7.4, agnostic, 4-min)	30s
Test Suite (7.4, agnostic, 4-max)	30s
Test Suite (7.4, agnostic, 5-min)	31s
Test Suite (7.4, agnostic, 5-max)	34s
Test Suite (8.2, sqlite, 4-max)	56s
Test Suite (8.2, sqlite, 5-min)	45s
Test Suite (8.2, sqlite, 5-max)	54s
Test Suite (8.2, sqlite, 6-min)	1m 0s
Test Suite (8.2, sqlite, 6-max)	54s
Test Suite (8.2, mysql, 4-max)	1m 37s
Test Suite (8.2, mysql, 5-min)	1m 28s
Test Suite (8.2, mysql, 5-max)	1m 27s
Test Suite (8.2, mysql, 6-min)	1m 20s
Test Suite (8.2, mysql, 6-max)	1m 21s
Test Suite (8.2, pgsql, 4-max)	1m 17s
Test Suite (8.2, pgsql, 5-min)	1m 12s
Test Suite (8.2, pgsql, 5-max)	1m 17s
Test Suite (8.2, pgsql, 6-min)	1m 10s
Test Suite (8.2, pgsql, 6-max)	1m 20s
Test Suite (8.2, agnostic, 4-max)	29s
Test Suite (8.2, agnostic, 5-min)	27s
Test Suite (8.2, agnostic, 5-max)	31s
Test Suite (8.2, agnostic, 6-min)	30s
Test Suite (8.2, agnostic, 6-max)	29s
	39m 2s

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