Fix psalm issues

Author: roxblnfk

psalm-baseline.xml

@@ -254,11 +254,6 @@
       <code><![CDATA[$column]]></code>
       <code><![CDATA[$column]]></code>
     </MixedAssignment>
-    <RedundantConditionGivenDocblockType>
-      <code><![CDATA[$child->getRole() !== null && $entity !== null]]></code>
-      <code><![CDATA[$entity !== null]]></code>
-      <code><![CDATA[\assert($child->getRole() !== null && $entity !== null && isset($parent))]]></code>
-    </RedundantConditionGivenDocblockType>
     <RiskyTruthyFalsyComparison>
       <code><![CDATA[$outerKey]]></code>
       <code><![CDATA[empty($tableName)]]></code>

src/TableInheritance.php

@@ -69,7 +69,7 @@ public function run(Registry $registry): Registry
                 // todo should $parent be not null?
                 // \assert(isset($parent));
 
-                \assert($child->getRole() !== null && $entity !== null);
+                \assert($child->getRole() !== null);
 
                 if (!$registry->hasEntity($child->getRole())) {
                     $registry->register($child);