<!-- Love localstack? Please consider supporting our collective:
👉  https://opencollective.com/localstack/donate -->

# Type of request: This is a ...

[x] bug report
[ ] feature request

# Detailed description

When using java-aws-sdk `CreateFunctionRequest` and `UpdateFunctionCodeRequest` with `publish` flag set to `true` should publish new version of lambda function. When I tried such operations against localstack container in version `localstack/localstack:0.11.2` those operations didn't publish new function version.

## Expected behavior

`CreateFunctionResponse` nad `UpdateFunctionCodeResponse` when `publish` flag is set to `true` will return under `version` field new version of changed AWS lambda function.

## Actual behavior

Even flag `publish` is set to `true`, above operations responses return in version `$LATEST` value what indicate that operation didn't produce new function version

# Steps to reproduce
- check available versions of given function
- create function or update existing with `publish` flag set to `true`
```
CreateFunctionRequest.builder
      .functionName(functionName)
      .runtime(runtimeName)
      .handler(handlerName)
      .layers(functionLayers)
      .role(lambdaExecutionRole)
      .tags(cdsLambdaTags)
      .memorySize(memorySize)
      .code(functionCode)
      .publish(true)
      .build
//or
UpdateFunctionCodeRequest.builder()
      .functionName(functionName)
      .zipFile(functionCode.zipFile())
      .publish(true)
      .build()
```
- check available versions of given function

## Command used to start LocalStack

Used testcontainers java localstack library.

## Client code (AWS SDK code snippet, or sequence of "awslocal" commands)

```
CreateFunctionRequest.builder
      .functionName(functionName)
      .runtime(runtimeName)
      .handler(handlerName)
      .layers(functionLayers)
      .role(lambdaExecutionRole)
      .tags(cdsLambdaTags)
      .memorySize(memorySize)
      .code(functionCode)
      .publish(true)
      .build
//or
UpdateFunctionCodeRequest.builder()
      .functionName(functionName)
      .zipFile(functionCode.zipFile())
      .publish(true)
      .build()
```
self._create_function(self.FUNCTION_NAME)
        
        payload = {
            'DestinationConfig': {
                'OnFailure': {
                    'Destination': self.DL_QUEUE
                }
            },
            'MaximumEventAgeInSeconds': self.EVENT_AGE,
            'MaximumRetryAttempts': self.RETRY_ATTEMPTS
        }
        response = self.LAMBDA_OBJ.put_function_event_invoke_config(
            payload
        )
        
        self.assertIsNotNone(response)
        
        response = self.LAMBDA_OBJ.get_function_event_invoke_config()
        
        self.assertEqual(response['FunctionArn'], self.LAMBDA_OBJ.id)
        self.assertEqual(response['MaximumRetryAttempts'], self.RETRY_ATTEMPTS)
        self.assertEqual(response['MaximumEventAgeInSeconds'], self.EVENT_AGE)
        self.assertEqual(response['DestinationConfig']['OnFailure']['Destination'], self.DL_QUEUE)