v4.0.0-beta.1

• Compatibility with Elasticsearch 8.0, #55
• Map meta attributes as keyword by default, #52 #55
• Change behavior when a document fails to be indexed when the command is run, #54 #55
• Remove deprecated options valantic_elastica_bridge.client.host and valantic_elastica_bridge.client.port. Use valantic_elastica_bridge.client.dsn instead, e.g. http://localhost:9200
• Renamed valantic_elastica_bridge.client.addSentryBreadcrumbs to valantic_elastica_bridge.client.should_add_sentry_breadcrumbs
• Event-based updates are now handled via Symfony Messenger which needs to be configured. See UPGRADE.md and README.md