OpenApi arguments only accepts single level arguments

"actions": [
  {
    "name": "ansibleAction",
    "functionRef": {
      "refName": "triggerAnsible",
      "arguments": {
        "id": "7",
        "data": {
          "extra_vars": {
            "kogito_id": "test"
          }
        }
      }
    }
  }
], 

Caused by: java.lang.IllegalArgumentException: Failed to parse input model from ordinary String to Json tree
    at org.kie.kogito.serverless.workflow.JsonNodeResolver.parse(JsonNodeResolver.java:48)
    at org.kie.kogito.serverless.workflow.JsonNodeResolver.evalExpression(JsonNodeResolver.java:55)
    at org.kie.kogito.process.expr.ExpressionWorkItemResolver.apply(ExpressionWorkItemResolver.java:37)
    at org.kie.kogito.process.expr.ExpressionWorkItemResolver.apply(ExpressionWorkItemResolver.java:23)
    at org.kie.kogito.process.workitems.impl.KogitoWorkItemImpl.processValue(KogitoWorkItemImpl.java:522)
    at org.kie.kogito.process.workitems.impl.KogitoWorkItemImpl$ProxyMap.get(KogitoWorkItemImpl.java:298)
    at org.kie.kogito.process.workitems.impl.KogitoWorkItemImpl.getParameter(KogitoWorkItemImpl.java:100)
    at org.kie.kogito.handlers.JobTemplatesApi_jobTemplatesJobTemplatesLaunchCreate_triggerAnsible_Handler.executeWorkItem(JobTemplatesApi_jobTemplatesJobTemplatesLaunchCreate_triggerAnsible_Handler.java:23)
    at org.kie.kogito.handlers.JobTemplatesApi_jobTemplatesJobTemplatesLaunchCreate_triggerAnsible_Handler_ClientProxy.executeWorkItem(Unknown Source)
    at org.jbpm.process.instance.LightWorkItemManager.internalExecuteWorkItem(LightWorkItemManager.java:80)
    at org.jbpm.workflow.instance.node.WorkItemNodeInstance.lambda$internalTrigger$0(WorkItemNodeInstance.java:155)
    at org.jbpm.workflow.instance.node.WorkItemNodeInstance.processWorkItemHandler(WorkItemNodeInstance.java:168)
    ... 58 more
Caused by: com.fasterxml.jackson.core.JsonParseException: Unexpected character ('e' (code 101)): was expecting double-quote to start field name
 at [Source: (String)"{extra_vars={kogito_id=test}}"; line: 1, column: 3]
    at com.fasterxml.jackson.core.JsonParser._constructError(JsonParser.java:2391)
    at com.fasterxml.jackson.core.base.ParserMinimalBase._reportError(ParserMinimalBase.java:735)
    at com.fasterxml.jackson.core.base.ParserMinimalBase._reportUnexpectedChar(ParserMinimalBase.java:659)
    at com.fasterxml.jackson.core.json.ReaderBasedJsonParser._handleOddName(ReaderBasedJsonParser.java:1860)
    at com.fasterxml.jackson.core.json.ReaderBasedJsonParser.nextFieldName(ReaderBasedJsonParser.java:962)
    at com.fasterxml.jackson.databind.deser.std.BaseNodeDeserializer._deserializeContainerNoRecursion(JsonNodeDeserializer.java:437)
    at com.fasterxml.jackson.databind.deser.std.JsonNodeDeserializer.deserialize(JsonNodeDeserializer.java:84)
    at com.fasterxml.jackson.databind.deser.std.JsonNodeDeserializer.deserialize(JsonNodeDeserializer.java:20)
    at com.fasterxml.jackson.databind.deser.DefaultDeserializationContext.readRootValue(DefaultDeserializationContext.java:322)
    at com.fasterxml.jackson.databind.ObjectMapper._readTreeAndClose(ObjectMapper.java:4716)
    at com.fasterxml.jackson.databind.ObjectMapper.readTree(ObjectMapper.java:3076)
    at org.kie.kogito.serverless.workflow.JsonNodeResolver.parse(JsonNodeResolver.java:46)