Suppress psalm warnings about app classes

Signed-off-by: Julius Härtl <jus@bitgrid.net>

psalm.xml

@@ -85,5 +85,12 @@
 				<file name="core/register_command.php" />
 			</errorLevel>
 		</UndefinedGlobalVariable>
+		<UndefinedDocblockClass>
+			<errorLevel type="suppress">
+				<!-- Helper classes for sharing API integration from other apps -->
+				<referencedClass name="OCA\Deck\Sharing\ShareAPIHelper" />
+				<referencedClass name="OCA\Talk\Share\Helper\DeletedShareAPIController" />
+			</errorLevel>
+		</UndefinedDocblockClass>
 	</issueHandlers>
 </psalm>