Optimized pdo_pgsql connection test (#12454)

Fixed regular expression to get password from dsn (#12448)

Fix 12424 PDO_PGSQL unit test unexistent variables (#12446)

* Fix 12424 PDO_PGSQL unit test unexistent variables
Co-authored-by: Saki Takamachi <34942839+SakiTakamachi@users.noreply.gith

Fix 12424 PDO_PGSQL unit test unexistent variables (#12446)

* Fix 12424 PDO_PGSQL unit test unexistent variables
Co-authored-by: Saki Takamachi <34942839+SakiTakamachi@users.noreply.github.com>

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Fix GH-12423: Changed to prioritize DSN authentication information over arguments.

Added connection test

Close GH-12424