add Pdo\Pgsql to stubs map array #2251

Job	Run time
Run cs-fixer and stubs structure tests	4m 33s
Run cs-fixer and stubs structure tests	4m 44s
Run tests against php 5.6	4m 58s
Run tests against php 5.6	5m 50s
Run tests against php 7.0	5m 42s
Run tests against php 7.0	6m 45s
Run tests against php 7.1	5m 43s
Run tests against php 7.1	6m 28s
Run tests against php 7.2	5m 43s
Run tests against php 7.2	6m 43s
Run tests against php 7.3	5m 42s
Run tests against php 7.3	6m 37s
Run tests against php 7.4	7m 40s
Run tests against php 7.4	7m 40s
Run tests against php 8.0	5m 41s
Run tests against php 8.0	7m 6s
Run tests against php 8.1	5m 44s
Run tests against php 8.1	7m 3s
Run tests against php 8.2	7m 50s
Run tests against php 8.2	7m 50s
Run tests against php 8.3	7m 35s
Run tests against php 8.3	7m 35s
Run tests against php 8.4	5m 41s
Run tests against php 8.4	7m 9s
	2h 34m 2s

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