cover changes with setup-integration test

Author: Nazar65

dev/tests/setup-integration/_files/Magento/TestSetupDeclarationModule1/etc/db_schema.xml

@@ -48,6 +48,7 @@
         <column xsi:type="longtext" name="longtext"/>
         <column xsi:type="mediumtext" name="mediumtext"/>
         <column xsi:type="varchar" name="varchar" length="254" nullable="true"/>
+        <column xsi:type="char" name="char" length="255" nullable="true"/>
         <column xsi:type="mediumblob" name="mediumblob"/>
         <column xsi:type="blob" name="blob"/>
         <column xsi:type="boolean" name="boolean"/>

dev/tests/setup-integration/_files/Magento/TestSetupDeclarationModule1/fixture/valid_xml_revision_1.php

@@ -199,6 +199,12 @@
                     'type' => 'mediumtext',
                     'name' => 'mediumtext',
                 ],
+                'char' => [
+                    'type' => 'char',
+                    'name' => 'char',
+                    'length' => '255',
+                    'nullable' => 'true',
+                ],
                 'varchar' => [
                     'type' => 'varchar',
                     'name' => 'varchar',