update AddKeyStoreRealmOnlineTest for WildFly 22

WildFly 22+ contains by default "applicationKS" which tests shouldn't (and actually is not able to) remove since it doesn't create it.

```
<key-stores>
    <key-store name="applicationKS">
        <credential-reference clear-text="password"/>
        <implementation type="JKS"/>
        <file path="application.keystore" relative-to="jboss.server.config.dir"/>
    </key-store>
</key-stores>
```

testsuite/standalone/src/test/java/org/wildfly/extras/creaper/commands/elytron/realm/AddKeyStoreRealmOnlineTest.java

@@ -12,7 +12,13 @@
 import org.wildfly.extras.creaper.commands.elytron.tls.AddKeyStore;
 import org.wildfly.extras.creaper.core.CommandFailedException;
 import org.wildfly.extras.creaper.core.ServerVersion;
+import org.wildfly.extras.creaper.core.online.ModelNodeResult;
 import org.wildfly.extras.creaper.core.online.operations.Address;
+import org.wildfly.extras.creaper.core.online.operations.OperationException;
+import org.wildfly.extras.creaper.core.online.operations.Operations;
+
+import java.io.IOException;
+import java.util.List;
 
 
 @RunWith(Arquillian.class)
@@ -39,7 +45,9 @@ public void cleanup() throws Exception {
             administration.reloadIfRequired();
         }
 
-        removeAllElytronChildrenType("key-store");
+        removeKeyStoreIfExists("keyStore1");
+        removeKeyStoreIfExists("keyStore2");
+        removeKeyStoreIfExists("TEST_DEFAULT_KEYSTORE_NAME");
 
         administration.reloadIfRequired();
     }
@@ -137,4 +145,10 @@ private void addKeyStore(String keyStoreName) throws CommandFailedException {
                 .build();
         client.apply(addKeyStore);
     }
+
+    private void removeKeyStoreIfExists(final String keyStoreName) throws IOException, OperationException {
+        final Operations ops = new Operations(client);
+        final Address keyStoreAddress = SUBSYSTEM_ADDRESS.and("key-store", keyStoreName);
+        ops.removeIfExists(keyStoreAddress);
+    }
 }