feat(CI): Add a stub for SensitiveParameter, so Psalm is not failing on Doctrine/DBAL

Signed-off-by: Joas Schilling <coding@schilljs.com>

build/stubs/SensitiveParameter.phpstub

@@ -0,0 +1,5 @@
+<?php
+
+#[\Attribute(Attribute::TARGET_PARAMETER)]
+class SensitiveParameter {
+}

psalm.xml

@@ -68,6 +68,7 @@
 		<file name="build/stubs/imagick.php"/>
 		<file name="build/stubs/intl.php"/>
 		<file name="build/stubs/IntlChar.php"/>
+		<file name="build/stubs/SensitiveParameter.phpstub"/>
 		<file name="build/stubs/ldap.php"/>
 		<file name="build/stubs/memcached.php"/>
 		<file name="build/stubs/redis.php"/>