Precise return type for `Result::rowCount()` based on detected driver #1215

Job	Run time
PHPStan (7.3)	40s
Tests (7.2, lowest)	1m 27s
PHPStan (7.4)	37s
Tests (7.2, highest)	1m 54s
PHPStan (8.0)	29s
Tests (7.3, lowest)	1m 30s
Tests (7.3, highest)	1m 30s
PHPStan (8.1)	31s
Tests (7.4, lowest)	1m 34s
PHPStan (8.2)	19s
Tests (7.4, highest)	1m 30s
PHPStan (8.3)	19s
Tests (8.0, lowest)	1m 17s
PHPStan (8.3, composer require --dev doctrine/orm:^3.0 doctrine/dbal:^4.0 carbonphp/carbon-doctri...	20s
Tests (8.0, highest)	1m 16s
Tests (8.1, lowest)	1m 29s
Tests (8.1, highest)	1m 12s
Coding Standard	23s
Tests (8.2, lowest)	1m 10s
Tests (8.2, highest)	1m 9s
Lint (7.2)	17s
Tests (8.3, highest, composer config extra.patches.doctrine/orm --json --merge '["compatibility/p...	1m 6s
Lint (7.3)	16s
Lint (7.4)	34s
Lint (8.0)	24s
Lint (8.1)	14s
Lint (8.2)	18s
Lint (8.3)	11s
	23m 56s

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