### Elasticsearch Version

8.2.0

### Installed Plugins

_No response_

### Java Version

_bundled_

### OS Version

docker-image = docker.elastic.co/elasticsearch/elasticsearch:8.2.0

### Problem Description

We are trying to migrate from Elasticsearch 6.7.1 to Elasticsearch 8.2.0.

With the same amount of documents per bulk request (100 docs per request), we always get a socket timeout in Elasticsearch 8.2.0. Everything works fine in Elasticsearch 6.7.1.

I noticed that indexing the same document in Elasticsearch 8.2.0 takes 44152ms. In Elasticsearch 6.7.1, indexing takes 50ms.

### Steps to Reproduce

[elasticsearch_8.2.0.txt](https://github.com/elastic/elasticsearch/files/8754299/elasticsearch_8.2.0.txt)
[elasticsearch_6.7.1.txt](https://github.com/elastic/elasticsearch/files/8754300/elasticsearch_6.7.1.txt)



### Logs (if relevant)

_No response_
server/src/main/java/org/elasticsearch/index/mapper/DocumentParser.java
+ "] tried to parse as array, but got EOF, is there a mismatch in types for the same field?"
        );
    }
    private static void parseValue(
        final DocumentParserContext context,
        ObjectMapper parentMapper,
        String currentFieldName,
        XContentParser.Token token
    ) throws IOException {
        if (currentFieldName == null) {
            throwOnNoFieldName(context, parentMapper);
        }
        Mapper mapper = getLeafMapper(context, parentMapper, currentFieldName);
        if (mapper != null) {
            parseObjectOrField(context, mapper);
        } else {
            parseDynamicValue(context, parentMapper, currentFieldName, token);
        }
    }
    private static void throwOnNoFieldName(DocumentParserContext context, ObjectMapper parentMapper) throws IOException {
        throw new MapperParsingException(
            "object mapping ["
                + parentMapper.name()
                + "] trying to serialize a value with"
                + " no field associated with it, current value ["
                + context.parser().textOrNull()
                + "]"
        );
    }
    private static void parseNullValue(DocumentParserContext context, ObjectMapper parentMapper, String lastFieldName) throws IOException {