ci: update psalm baseline

Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>

Author: blizzz

build/psalm-baseline.xml

@@ -1101,16 +1101,10 @@
     </InvalidDocblock>
   </file>
   <file src="apps/user_ldap/lib/User_LDAP.php">
-    <ImplementedReturnTypeMismatch>
-      <code><![CDATA[string|false]]></code>
-    </ImplementedReturnTypeMismatch>
     <MoreSpecificImplementedParamType>
       <code><![CDATA[$limit]]></code>
       <code><![CDATA[$offset]]></code>
     </MoreSpecificImplementedParamType>
-    <NullableReturnStatement>
-      <code><![CDATA[null]]></code>
-    </NullableReturnStatement>
     <RedundantCondition>
       <code><![CDATA[$displayName && (count($displayName) > 0)]]></code>
       <code><![CDATA[is_string($dn)]]></code>